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.
| 2801. |
For the equation x2+bx+c=0, if 1+b+c=0 for all b,c∈R, then the roots are |
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Answer» For the equation x2+bx+c=0, if 1+b+c=0 for all b,c∈R, then the roots are |
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| 2802. |
Find the value of b, if one root of the equation x2 + ax + 2b = 0 is 2 + 4i, where a, b ∈ R |
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Answer» Find the value of b, if one root of the equation x2 + ax + 2b = 0 is 2 + 4i, where a, b ∈ R |
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| 2803. |
If f(x)=x2+2bx+2c2 and g(x)=−x2−2cx+b2 are such that the minimum value of f(x) always exceeds maximum value of g(x), then which of the following is/are correct? |
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Answer» If f(x)=x2+2bx+2c2 and g(x)=−x2−2cx+b2 are such that the minimum value of f(x) always exceeds maximum value of g(x), then which of the following is/are correct? |
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| 2804. |
The value of a for which x3+ax+1=0 and x4+ax2+1=0 have exactly one common root is |
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Answer» The value of a for which x3+ax+1=0 and x4+ax2+1=0 have exactly one common root is |
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| 2805. |
If α,β,γ,δ are the roots of equation 2x4+4x3−3x2+3x+1=0, then value of 12α−1+12β−1+12γ−1+12δ−1 is |
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Answer» If α,β,γ,δ are the roots of equation 2x4+4x3−3x2+3x+1=0, then value of 12α−1+12β−1+12γ−1+12δ−1 is |
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| 2806. |
Plot the graph of y=(x-3)2+7 |
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Answer» Plot the graph of y=(x-3)2+7 |
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| 2807. |
The number of intergral values of a for which y=x2−ax+11x2−5x+4 can take all real values is |
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Answer» The number of intergral values of a for which y=x2−ax+11x2−5x+4 can take all real values is |
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| 2808. |
If α,β,γ be the roots of the equation (x−a)(x−b)(x−c)=d,d≠0, then the roots of the equation (x−α)(x−β)(x−γ)+d=0 are |
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Answer» If α,β,γ be the roots of the equation (x−a)(x−b)(x−c)=d,d≠0, then the roots of the equation (x−α)(x−β)(x−γ)+d=0 are |
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| 2809. |
If a,b,c,d and p are distinct non-zero real numbers such that (a2+b2+c2)p2−2(ab+bc+dc)p+(b2+c2+d2)≤0, then ac is equal to |
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Answer» If a,b,c,d and p are distinct non-zero real numbers such that (a2+b2+c2)p2−2(ab+bc+dc)p+(b2+c2+d2)≤0, then ac is equal to |
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| 2810. |
For the equation |x|2+|x|−6=0,the sum of the real roots is |
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Answer» For the equation |x|2+|x|−6=0,the sum of the real roots is |
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| 2811. |
Let p, q, r be roots of cubic equation x3+2x2+3x+3=0, then |
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Answer» Let p, q, r be roots of cubic equation x3+2x2+3x+3=0, then |
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| 2812. |
The range of a for which x2−ax+1−2a2 is always positive for all real values of x, is |
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Answer» The range of a for which x2−ax+1−2a2 is always positive for all real values of x, is |
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| 2813. |
The number of integral values of k, for which (x2−x+1)(kx2−3kx−5)<0 is |
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Answer» The number of integral values of k, for which (x2−x+1)(kx2−3kx−5)<0 is |
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| 2814. |
The number of all possible positive integral values of α for which the roots of the quadratic equation, 6x2−11x+α=0 are rational numbers is : |
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Answer» The number of all possible positive integral values of α for which the roots of the quadratic equation, 6x2−11x+α=0 are rational numbers is : |
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| 2815. |
If the zeroes of monic cubic polynomial are 3,5 and 6, then the cubic polynomial is |
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Answer» If the zeroes of monic cubic polynomial are 3,5 and 6, then the cubic polynomial is |
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| 2816. |
If x1, x2, x3⋯xn are roots of xn+ax+b=0, then the value of (x1−x2)(x1−x3)(x1−x4)⋯(x1−xn) = |
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Answer» If x1, x2, x3⋯xn are roots of xn+ax+b=0, then the value of (x1−x2)(x1−x3)(x1−x4)⋯(x1−xn) = |
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| 2817. |
The value(s) of k for which the quadratic equations (1−2k)x2−6kx−1=0 and kx2−x+1=0 have at least one root in common, is (are) |
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Answer» The value(s) of k for which the quadratic equations (1−2k)x2−6kx−1=0 and kx2−x+1=0 have at least one root in common, is (are) |
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| 2818. |
If x2−ax+b=0 and x2−px+q=0 have one root common and the second equation has equal roots, then b+q is equal to |
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Answer» If x2−ax+b=0 and x2−px+q=0 have one root common and the second equation has equal roots, then b+q is equal to |
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| 2819. |
The value of y=2+14+14+14+14+......∞ is |
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Answer» The value of y=2+14+14+14+14+......∞ is |
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| 2820. |
The number of integral value(s) of x satisfying the inequality √(x−3)(2−x)<√4x2+12x+11, is |
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Answer» The number of integral value(s) of x satisfying the inequality √(x−3)(2−x)<√4x2+12x+11, is |
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| 2821. |
The least integral value of k for which (k−1)x2+8x+k+5 is always positive ∀ x∈R, is |
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Answer» The least integral value of k for which (k−1)x2+8x+k+5 is always positive ∀ x∈R, is |
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| 2822. |
Let ax2+bx+6=0 does not have distinct real roots. If the least value of 3a+b is k, then the value of |k| is |
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Answer» Let ax2+bx+6=0 does not have distinct real roots. If the least value of 3a+b is k, then the value of |k| is |
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| 2823. |
Let α,β be the roots of the equation x2−px+r=0 and α2,2β be the roots of the equation x2−qx+r=0. Then, the value of r is: |
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Answer» Let α,β be the roots of the equation x2−px+r=0 and α2,2β be the roots of the equation x2−qx+r=0. Then, the value of r is: |
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| 2824. |
If x2+ax+bc=0, x2+bx+ac=0, a≠b have one root in common, then their other roots satisfy the equation |
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Answer» If x2+ax+bc=0, x2+bx+ac=0, a≠b have one root in common, then their other roots satisfy the equation |
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| 2825. |
The minimum integral value of a for which x2−x1−ax attains all real values, is |
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Answer» The minimum integral value of a for which x2−x1−ax attains all real values, is |
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| 2826. |
Solve the following quadratics 13x2+7x+1=0 |
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Answer» Solve the following quadratics 13x2+7x+1=0 |
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| 2827. |
If x2−2x+log12p=0 does not have two distinct real roots, then the maximum value of p is |
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Answer» If x2−2x+log12p=0 does not have two distinct real roots, then the maximum value of p is |
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| 2828. |
If p(x) is a polynomial of degree greater than 2 such that p(x) leaves remainder a and −a when divided by x+a and x−a respectively. If p(x) is divided by x2−a2 then remainder is |
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Answer» If p(x) is a polynomial of degree greater than 2 such that p(x) leaves remainder a and −a when divided by x+a and x−a respectively. If p(x) is divided by x2−a2 then remainder is |
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| 2829. |
Suppose a2=5a−8 and b2=5b−8. Then the equation whose roots are ab and ba is |
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Answer» Suppose a2=5a−8 and b2=5b−8. Then the equation whose roots are ab and ba is |
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| 2830. |
If the equations x2−kx−21=0 and x2−3kx+35=0 have a common root α<0, then the value of |k| is |
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Answer» If the equations x2−kx−21=0 and x2−3kx+35=0 have a common root α<0, then the value of |k| is |
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| 2831. |
If α,β are the root of a quadratic equation x2−3x+5=0, then the equation whose roots are (α2−3α+7) and (β2−3β+7) is |
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Answer» If α,β are the root of a quadratic equation x2−3x+5=0, then the equation whose roots are (α2−3α+7) and (β2−3β+7) is |
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| 2832. |
If 1−p is a root of the equation x2+px+1−p=0, then the roots of the equation are |
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Answer» If 1−p is a root of the equation x2+px+1−p=0, then the roots of the equation are |
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| 2833. |
If α,β are the roots of the equation x2−4x+3=0, then the value of √α4+β4−1 is |
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Answer» If α,β are the roots of the equation x2−4x+3=0, then the value of √α4+β4−1 is |
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| 2834. |
If k1,k2,k3 are real numbers and the equation k1x2+k2x+k3=0 have three roots, then value of k1+k2+k3 is |
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Answer» If k1,k2,k3 are real numbers and the equation k1x2+k2x+k3=0 have three roots, then value of k1+k2+k3 is |
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| 2835. |
The number of integral values of m such that the roots of x2−(m−3)x+m=0 lie in the interval (1,2), is |
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Answer» The number of integral values of m such that the roots of x2−(m−3)x+m=0 lie in the interval (1,2), is |
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| 2836. |
The number of integral values of a for which 4t−(a−4)2t+9a4<0, ∀ t∈(1,2) is |
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Answer» The number of integral values of a for which 4t−(a−4)2t+9a4<0, ∀ t∈(1,2) is |
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| 2837. |
The least positive value of a for which 4x−a⋅2x−a+3≤0 is satisfied by atleast one real value of x is |
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Answer» The least positive value of a for which 4x−a⋅2x−a+3≤0 is satisfied by atleast one real value of x is |
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| 2838. |
If α,β are roots of 4x2−16x+c=0, c>0 such that 1<α<2<β<3, then the number of integral value of c is |
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Answer» If α,β are roots of 4x2−16x+c=0, c>0 such that 1<α<2<β<3, then the number of integral value of c is |
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| 2839. |
The number of the distinct zeroes of the polynomial f(x)=x(x−4)3(x−3)2(x−1) is |
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Answer» The number of the distinct zeroes of the polynomial f(x)=x(x−4)3(x−3)2(x−1) is |
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| 2840. |
The least value of expression x2−4xy+5y2−2y+6, if x,y∈R is |
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Answer» The least value of expression x2−4xy+5y2−2y+6, if x,y∈R is |
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| 2841. |
Let f(x)=x5+ax3+bx. The remainder when f(x) is divided by x+1 is −3. Then the remainder when f(x) is divided by x2−1, is |
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Answer» Let f(x)=x5+ax3+bx. The remainder when f(x) is divided by x+1 is −3. Then the remainder when f(x) is divided by x2−1, is |
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| 2842. |
Let p and q be real numbers such that p≠0,p3≠q and p3≠−q . If α and β are nonzero complex numbers satisfying α+β=−p and α3+β3=q , then a quadratic equation having αβ and βα as its roots is - |
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Answer» Let p and q be real numbers such that p≠0,p3≠q and p3≠−q . If α and β are nonzero complex numbers satisfying α+β=−p and α3+β3=q , then a quadratic equation having αβ and βα as its roots is - |
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| 2843. |
The value of √2+√2+√2+……∞ is |
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Answer» The value of √2+√2+√2+……∞ is |
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| 2844. |
Let α and β are two real roots of the equation (k+1)tan2x−√2λtanx=1−k, where k≠−1 and λ are real numbers. If tan2(α+β)=50, then the value of λ is |
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Answer» Let α and β are two real roots of the equation (k+1)tan2x−√2λtanx=1−k, where k≠−1 and λ are real numbers. If tan2(α+β)=50, then the value of λ is |
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| 2845. |
The number of real roots of the equation (x2+2x)2−(x+1)2−55=0 |
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Answer» The number of real roots of the equation (x2+2x)2−(x+1)2−55=0 |
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| 2846. |
The complete set of values of a for which the inequality ax2−(3+2a)x+6>0,a≠0 holds good for exactly three integral values of x is |
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Answer» The complete set of values of a for which the inequality ax2−(3+2a)x+6>0,a≠0 holds good for exactly three integral values of x is |
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| 2847. |
The set of values of k for which the equation (k+2)x2−2kx−k=0 has two roots on the number line symmetrically placed about 1 is |
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Answer» The set of values of k for which the equation (k+2)x2−2kx−k=0 has two roots on the number line symmetrically placed about 1 is |
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| 2848. |
If the product of the roots of the quadratic equation mx2−2x+(2m−1)=0 is 3, then the value of m is |
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Answer» If the product of the roots of the quadratic equation mx2−2x+(2m−1)=0 is 3, then the value of m is |
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| 2849. |
The values of a for which the number 6 lies in between the roots of the equation x2+2(a−3)x+9=0, belong to |
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Answer» The values of a for which the number 6 lies in between the roots of the equation x2+2(a−3)x+9=0, belong to |
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| 2850. |
Solve the following quadratics 17x2−8x+1=0 |
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Answer» Solve the following quadratics 17x2−8x+1=0 |
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