This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2751. |
If all integers satisfying the inequality (x−1)2(x−2)3(x−4)5(x−5)5(x−5)2≥0 are arranged in increasing order then the quadratic equation with the first and fifth integers in the list as roots is - |
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Answer» If all integers satisfying the inequality (x−1)2(x−2)3(x−4)5(x−5)5(x−5)2≥0 are arranged in increasing order then the quadratic equation with the first and fifth integers in the list as roots is - |
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| 2752. |
If α,β are the roots of the equation x2−2x+4=0, then the equation whose roots are α3,β3 is |
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Answer» If α,β are the roots of the equation x2−2x+4=0, then the equation whose roots are α3,β3 is |
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| 2753. |
The range of f(x)=−x2+7x+60 in x∈[−3,2] is |
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Answer» The range of f(x)=−x2+7x+60 in x∈[−3,2] is |
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| 2754. |
The linear factor(s) of the equation x2+4xy+4y2+3x+6y−4=0 is/are |
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Answer» The linear factor(s) of the equation x2+4xy+4y2+3x+6y−4=0 is/are |
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| 2755. |
If a, b, c are positive rational numbers such that a > b > c and the quadratic equation (a+b−2c)x2+(b+c−2a)x+(c+a−2b)=0 has a root in the interval (-1, 0), then |
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Answer» If a, b, c are positive rational numbers such that a > b > c and the quadratic equation |
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| 2756. |
If a,b,c are non-zero real numbers and ax2+bx+c=0, bx2+cx+a=0 have one root in common, then a3+b3+c3abc= |
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Answer» If a,b,c are non-zero real numbers and ax2+bx+c=0, bx2+cx+a=0 have one root in common, then a3+b3+c3abc= |
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| 2757. |
(I) If x2+x−a=0 has integral roots(P)2and a∈N,then a can be equal to(II) If the equation ax2+2bx+4c=16(Q)12has no real roots and a+c>b+4,then the integral value of c can be(III) If equation x2+2bx+9b−14=0(R)1has only negative roots, then the integralvalues of b can be(IV) If N be the number of solutions of(S)30the equation |x−|4−x||−2x=4, thenthe value of N is Which of the following is the only CORRECT combination? |
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Answer» (I) If x2+x−a=0 has integral roots(P)2and a∈N,then a can be equal to(II) If the equation ax2+2bx+4c=16(Q)12has no real roots and a+c>b+4,then the integral value of c can be(III) If equation x2+2bx+9b−14=0(R)1has only negative roots, then the integralvalues of b can be(IV) If N be the number of solutions of(S)30the equation |x−|4−x||−2x=4, thenthe value of N is Which of the following is the only CORRECT combination? |
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| 2758. |
For non-zero distinct real numbers a1 and a2, let f(x)=a1x2+b1x+c1,g(x)=a2x2+b2x+c2 and p(x)=f(x)−g(x). If p(x)=0 only at x=−1 and p(−2)=2, then the value of p(2) is |
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Answer» For non-zero distinct real numbers a1 and a2, let f(x)=a1x2+b1x+c1,g(x)=a2x2+b2x+c2 and p(x)=f(x)−g(x). If p(x)=0 only at x=−1 and p(−2)=2, then the value of p(2) is |
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| 2759. |
The values of m for which y=mx2+3x−4−4x2+3x+m has range R is |
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Answer» The values of m for which y=mx2+3x−4−4x2+3x+m has range R is |
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| 2760. |
The number of integral value(s) of a for which loge(x2+5x)=loge(x+a+3) has exactly one solution is |
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Answer» The number of integral value(s) of a for which loge(x2+5x)=loge(x+a+3) has exactly one solution is |
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| 2761. |
If α and β are the roots of the equations x2+px+q=0, x2008+p1004x1004+q1004=0, then αβ and βα are the roots of xn+1+(x+1)n=0. The value of n must be |
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Answer» If α and β are the roots of the equations x2+px+q=0, x2008+p1004x1004+q1004=0, then αβ and βα are the roots of xn+1+(x+1)n=0. The value of n must be |
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| 2762. |
The sum of the roots of equation log2(32+x−6x)=3+xlog2(32) is |
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Answer» The sum of the roots of equation log2(32+x−6x)=3+xlog2(32) is |
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| 2763. |
The sum of roots of the polynomial equation (x−1)(x−2)(x−3)=2(x−2)(x−3) is |
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Answer» The sum of roots of the polynomial equation (x−1)(x−2)(x−3)=2(x−2)(x−3) is |
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| 2764. |
The number of values of x satisfying the equation (x2+7x+11)(x2−4x−21)=1 is |
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Answer» The number of values of x satisfying the equation (x2+7x+11)(x2−4x−21)=1 is |
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| 2765. |
If the roots of the equation x2+4x8x+6=k−1k+1 are equal in magnitude and opposite in sign, then the value of k is |
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Answer» If the roots of the equation x2+4x8x+6=k−1k+1 are equal in magnitude and opposite in sign, then the value of k is |
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| 2766. |
If a+2b+c=4 and a,b,c∈R, then the maximum value of (ab+bc+ca) is |
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Answer» If a+2b+c=4 and a,b,c∈R, then the maximum value of (ab+bc+ca) is |
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| 2767. |
The quadratic equations x2−6x+a=0, x2−cx+6=0 have one root in common. The other roots of the first and second equations are integers in the ratio 4:3 . Then common root is : |
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Answer» The quadratic equations x2−6x+a=0, x2−cx+6=0 have one root in common. The other roots of the first and second equations are integers in the ratio 4:3 . Then common root is : |
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| 2768. |
The value(s) of 'p' for which the parabola represented by quadratic function y=(p−2)x2+8x+(p+4) will remain below X-axis for all real values of x is . |
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Answer» The value(s) of 'p' for which the parabola represented by quadratic function y=(p−2)x2+8x+(p+4) will remain below X-axis for all real values of x is |
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| 2769. |
Let −π6<θ<−π12. Suppose α1 and β1 are the roots of the equation x2−2xsecθ+1=0 and α2 and β2 are the roots of the equation x2+2xtanθ−1=0. If α1>β1 and α2>β2, then α1+β2 equals: |
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Answer» Let −π6<θ<−π12. Suppose α1 and β1 are the roots of the equation x2−2xsecθ+1=0 and α2 and β2 are the roots of the equation x2+2xtanθ−1=0. If α1>β1 and α2>β2, then α1+β2 equals: |
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| 2770. |
If α, β are the roots of x2+px+q=0, then the value of α3+β3 is |
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Answer» If α, β are the roots of x2+px+q=0, then the value of α3+β3 is |
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| 2771. |
If x2 + 2(a - 1)x + a + 5 =0 has real roots belonging to the interval (1, 3) then aϵ |
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Answer» If x2 + 2(a - 1)x + a + 5 =0 has real roots belonging to the interval (1, 3) then aϵ |
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| 2772. |
If 5,5r,5r2 are the side lengths of a triangle, then the possible value(s) of r is/are |
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Answer» If 5,5r,5r2 are the side lengths of a triangle, then the possible value(s) of r is/are |
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| 2773. |
If both the roots of ax2+bx+c=0 are real, positive and distinct, then (where Δ=b2−4ax) |
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Answer» If both the roots of ax2+bx+c=0 are real, positive and distinct, then |
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| 2774. |
Solve the following quadratics 4x2+1=0 |
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Answer» Solve the following quadratics 4x2+1=0 |
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| 2775. |
If a2(a+p)=b2(b+p)=c2(c+p), where a,b,c,p∈R, then value of ab+bc+ca is |
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Answer» If a2(a+p)=b2(b+p)=c2(c+p), where a,b,c,p∈R, then value of ab+bc+ca is |
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| 2776. |
The largest natural number ′a′ for which the maximum value of f(x)=a−1+2x−x2 is always smaller than the minimum value of g(x)=x2−2ax+10−2a is |
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Answer» The largest natural number ′a′ for which the maximum value of f(x)=a−1+2x−x2 is always smaller than the minimum value of g(x)=x2−2ax+10−2a is |
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| 2777. |
A quadratic equation whose difference of roots is 3 and the sum of the squares of the roots is 29, is given by |
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Answer» A quadratic equation whose difference of roots is 3 and the sum of the squares of the roots is 29, is given by |
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| 2778. |
Number of integral values of λ for which x2−2λx<41−6λ ∀ x∈(1,6], is |
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Answer» Number of integral values of λ for which x2−2λx<41−6λ ∀ x∈(1,6], is |
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| 2779. |
Set of values of a for which both the roots of the quadratic polynomial f(x)=ax2+(a−3)x+1 lie on one side of the y−axis is |
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Answer» Set of values of a for which both the roots of the quadratic polynomial f(x)=ax2+(a−3)x+1 lie on one side of the y−axis is |
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| 2780. |
If the roots of the equation x2−kx+m=0 is tan2x and cot2x, then the minimum possible value of k+m is |
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Answer» If the roots of the equation x2−kx+m=0 is tan2x and cot2x, then the minimum possible value of k+m is |
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| 2781. |
If the equation x4−(k−1)x2+(2−k)=0 has three distinct real roots, then the possible value(s) of k is/are |
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Answer» If the equation x4−(k−1)x2+(2−k)=0 has three distinct real roots, then the possible value(s) of k is/are |
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| 2782. |
If the quadratic equation x2+[a2−5a+b+4]x+b=0 has roots −5 and 1, then maximum value of [a] (where [a] denote the greatet integer function) is |
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Answer» If the quadratic equation x2+[a2−5a+b+4]x+b=0 has roots −5 and 1, then maximum value of [a] (where [a] denote the greatet integer function) is |
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| 2783. |
Which of the following will have their graph plotted in first and second quadrant only? |
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Answer» Which of the following will have their graph plotted in first and second quadrant only? |
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| 2784. |
If the roots of the equation (m−2)x2−(8−2m)x−(8−3m)=0 are real and opposite in sign, then the number of integral value(s) of m is |
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Answer» If the roots of the equation (m−2)x2−(8−2m)x−(8−3m)=0 are real and opposite in sign, then the number of integral value(s) of m is |
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| 2785. |
If atleast one of the root of the equation x2−(a−3)x+a=0 is greater than 2, then a lies in the interval |
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Answer» If atleast one of the root of the equation x2−(a−3)x+a=0 is greater than 2, then a lies in the interval |
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| 2786. |
If 2x2+5x+2b=0 and 2x3+7x2+5x+1=0 have atleast one common root for three values of b, then the sum of all three values of b is |
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Answer» If 2x2+5x+2b=0 and 2x3+7x2+5x+1=0 have atleast one common root for three values of b, then the sum of all three values of b is |
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| 2787. |
The solutions of quadratic equation 3x2−5x+2=0 are |
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Answer» The solutions of quadratic equation 3x2−5x+2=0 are |
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| 2788. |
Let α,β are the roots of the equation 2x2−3x−7=0, then the quadratic equation whose roots are αβ and βα is |
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Answer» Let α,β are the roots of the equation 2x2−3x−7=0, then the quadratic equation whose roots are αβ and βα is |
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| 2789. |
If the roots of the equation 4x2+ax+3=0 are in ratio of 1:2, then value(s) of a is/are |
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Answer» If the roots of the equation 4x2+ax+3=0 are in ratio of 1:2, then value(s) of a is/are |
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| 2790. |
If x2+bx−a=0 and x2−ax+b=0 have only one common root, then |
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Answer» If x2+bx−a=0 and x2−ax+b=0 have only one common root, then |
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| 2791. |
If a:b=1:5, then the roots of the equation ax2−bx+4a=0 is/are |
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Answer» If a:b=1:5, then the roots of the equation ax2−bx+4a=0 is/are |
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| 2792. |
The number of integral roots of the equation x4+√x4+20=22 is |
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Answer» The number of integral roots of the equation x4+√x4+20=22 is |
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| 2793. |
Which of the following represents the graph of f(x)=ax2+bx+c where a<b<0<c ? |
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Answer» Which of the following represents the graph of f(x)=ax2+bx+c where a<b<0<c ? |
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| 2794. |
If the range of x satisfying 3x+2>(19)1/x is (a,∞), then least value of a is |
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Answer» If the range of x satisfying 3x+2>(19)1/x is (a,∞), then least value of a is |
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| 2795. |
The number of integral values of a such that the difference between the roots of the equation x2+ax−a=0 is less than 1, is |
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Answer» The number of integral values of a such that the difference between the roots of the equation x2+ax−a=0 is less than 1, is |
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| 2796. |
The roots of the equation x2+2(a−3)x+9=0 lie between −6 and 1. If 2,h1,h2,…,h20,[a], where [.] represents the greatest integer function, are in harmonic progression, then the value of 10h9 is |
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Answer» The roots of the equation x2+2(a−3)x+9=0 lie between −6 and 1. If 2,h1,h2,…,h20,[a], where [.] represents the greatest integer function, are in harmonic progression, then the value of 10h9 is |
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| 2797. |
If the polynomial equation (x2+x+1)2−(m−3)(x2+x+1)+m=0,m∈R has two distinct real roots, then m lies in the interval |
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Answer» If the polynomial equation (x2+x+1)2−(m−3)(x2+x+1)+m=0,m∈R has two distinct real roots, then m lies in the interval |
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| 2798. |
Solve the following quadratics 21x2+9x+1=0 |
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Answer» Solve the following quadratics 21x2+9x+1=0 |
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| 2799. |
The number of integral values of x for which f(x)=2x2−20x+42 is negative is |
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Answer» The number of integral values of x for which f(x)=2x2−20x+42 is negative is |
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| 2800. |
Let f(x)=Ax+B,A,B∈R and y=f(x) passes through the points (A,2A−B2) and (2B+3,(A+B)2−1). If B1,B2⋯Bn,n∈N, are different possible value(s) of B, then the value of n∑r=1Br is |
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Answer» Let f(x)=Ax+B,A,B∈R and y=f(x) passes through the points (A,2A−B2) and (2B+3,(A+B)2−1). If B1,B2⋯Bn,n∈N, are different possible value(s) of B, then the value of n∑r=1Br is |
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