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.
| 2851. |
If α,βare the roots of the equation ax2+bx+c=0 then the equation whose roots are α+1β and β+1α, is |
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Answer» If α,βare the roots of the equation ax2+bx+c=0 then the equation whose roots are α+1β and β+1α, is |
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| 2852. |
If the expression (n−2)x2+8x+(n+4) is negative ∀x∈R, then n lies in |
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Answer» If the expression (n−2)x2+8x+(n+4) is negative ∀x∈R, then n lies in |
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| 2853. |
The range of f(x)=1−x2+4x+5,x∈R−{−1,5} is |
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Answer» The range of f(x)=1−x2+4x+5,x∈R−{−1,5} is |
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| 2854. |
If least value of f(x)=x2+bx+c be −14 and maximum value of g(x)=−x2+bx+2 occurs at 32, then c is equal to |
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Answer» If least value of f(x)=x2+bx+c be −14 and maximum value of g(x)=−x2+bx+2 occurs at 32, then c is equal to |
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| 2855. |
The correct statement about the roots of the equation x2−4√2+8=0 |
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Answer» The correct statement about the roots of the equation x2−4√2+8=0 |
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| 2856. |
The zeroes of the quadratic polynomial f(x)=x2+7x+10 are |
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Answer» The zeroes of the quadratic polynomial f(x)=x2+7x+10 are |
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| 2857. |
Let p,q be integers and α,β be the roots of the equation x2−2x+3=0 where α≠β. If an=pαn+qβn where n∈{0,1,2,.....}, then the value of a9 is |
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Answer» Let p,q be integers and α,β be the roots of the equation x2−2x+3=0 where α≠β. |
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| 2858. |
Let α,β be the values of m for which the equation (1+m)x2−2(1+3m)x+(1+8m) has equal roots. Find the equation whose roots are α+2 and β+2. |
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Answer» Let α,β be the values of m for which the equation (1+m)x2−2(1+3m)x+(1+8m) has equal roots. Find the equation whose roots are α+2 and β+2. |
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| 2859. |
The number of real roots of the equation, e4x+e3x−4e2x+ex+1=0 is : |
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Answer» The number of real roots of the equation, e4x+e3x−4e2x+ex+1=0 is : |
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| 2860. |
The value(s) of a for which the roots of 2x2+(a2−1)x+a2+3a+4=0 are reciprocal to each other is/are |
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Answer» The value(s) of a for which the roots of 2x2+(a2−1)x+a2+3a+4=0 are reciprocal to each other is/are |
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| 2861. |
Find the equation whose roots are the cubes of the roots of x3+3x2+2=0 |
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Answer» Find the equation whose roots are the cubes of the roots of x3+3x2+2=0 |
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| 2862. |
The sum of values of x satisfying the equation √x1−x+√1−xx=136 is |
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Answer» The sum of values of x satisfying the equation √x1−x+√1−xx=136 is |
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| 2863. |
If equations x2−3x+4=0 and 4x2−2[3a+b]x+b=0 (a,b∈R) have a common root, then the complete set of values of a is (Here, [K] denotes the greatest integer less than or equal to K.) |
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Answer» If equations x2−3x+4=0 and 4x2−2[3a+b]x+b=0 (a,b∈R) have a common root, then the complete set of values of a is |
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| 2864. |
Let α, β be the roots of ax2+bx+c=0. The roots of a(x−2)2−b(x−2)(x−3)+c(x−3)2=0, where a≠0 are |
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Answer» Let α, β be the roots of ax2+bx+c=0. The roots of a(x−2)2−b(x−2)(x−3)+c(x−3)2=0, where a≠0 are |
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| 2865. |
If α,β are the roots of 2x2−2x+3=0 and α−1,β−1 are the roots of Ax2+Bx+C=0, then the value of (BA)2−4(CA) is |
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Answer» If α,β are the roots of 2x2−2x+3=0 and α−1,β−1 are the roots of Ax2+Bx+C=0, then the value of (BA)2−4(CA) is |
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| 2866. |
If m is choosen in the quadratic equation (m2+1)x2−3x+(m2+1)2=0 such that the sum of its roots is greatest, then the absolute difference of the cubes of its roots is : |
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Answer» If m is choosen in the quadratic equation (m2+1)x2−3x+(m2+1)2=0 such that the sum of its roots is greatest, then the absolute difference of the cubes of its roots is : |
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| 2867. |
Consider the quadratic equation (c−5)x2−2cx+(c−4)=0. Let S be the set of all integral values of c for which one root of the equation lies in the interval (0,2) and another root lies in the interval (2,3). The number of elements in S is |
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Answer» Consider the quadratic equation (c−5)x2−2cx+(c−4)=0. Let S be the set of all integral values of c for which one root of the equation lies in the interval (0,2) and another root lies in the interval (2,3). The number of elements in S is |
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| 2868. |
If the three equations x2+ax+12=0, x2+bx+15=0, x2+(a+b)x+36=0 have a common possible root. Then, the sum of roots is |
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Answer» If the three equations x2+ax+12=0, x2+bx+15=0, x2+(a+b)x+36=0 have a common possible root. Then, the sum of roots is |
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| 2869. |
√5x2+x+√5=0 |
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Answer» √5x2+x+√5=0 |
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| 2870. |
Let f(x)=(λ2+λ−2)x2+(λ+2)x be a quadratic polynomial. The sum of all integral values of λ for which f(x)<1 ∀ x∈R, is |
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Answer» Let f(x)=(λ2+λ−2)x2+(λ+2)x be a quadratic polynomial. The sum of all integral values of λ for which f(x)<1 ∀ x∈R, is |
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| 2871. |
If the difference of the roots of the equation (k−2)x2−(k−4)x−2=0,k≠2 is 3, then the sum of all the values of k is |
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Answer» If the difference of the roots of the equation (k−2)x2−(k−4)x−2=0,k≠2 is 3, then the sum of all the values of k is |
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| 2872. |
The zeroes of the polynomial f(x)=6x2−x−2 is/are |
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Answer» The zeroes of the polynomial f(x)=6x2−x−2 is/are |
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| 2873. |
Let α,β be the roots of x2−x−1=0 (α>β) and m,n∈Z,k∈W such that ak=mαk+nβk. If a4=35, then the value of 3m+2n is equal to |
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Answer» Let α,β be the roots of x2−x−1=0 (α>β) and m,n∈Z,k∈W such that ak=mαk+nβk. If a4=35, then the value of 3m+2n is equal to |
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