Question Library
Browse our collection of questions across various subjects
Mathematics
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Consider the following statements: 1. A matrix is not a number. 2. Two determinants of different orders may have the…
NDA Mathematics 2013
NDA 2013
Mathematics
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If D is a determinant of order 3 and D’ is the determinant obtained by replacing the elements of D…
NDA Mathematics 2013
NDA 2013
Mathematics
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The value of the determinant| m n p || p m n || n p m |
NDA Mathematics 2013
NDA 2013
Mathematics
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The roots of the equation| 1 t-1 1 || t-1 1 1 | = 0| 1 1 t-1 |
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the value of the minor of the element 9 in the determinant| 10 19 2 || 0 13…
NDA Mathematics 2013
NDA 2013
General Ability
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If A and B are two non-singular square matrices such that AB = A, then which one of the following…
NDA Mathematics 2013
NDA 2013
Mathematics
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If the numbers n – 3, 4n – 2, 5n + 1 are in AP, what is the value of…
NDA Mathematics 2013
NDA 2013
Mathematics
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For what value of k, the equations 3x – y = 8 and 9x – ky = 24 will have…
NDA Mathematics 2013
NDA 2013
Mathematics
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Two straight line paths are represented by the equations 2x – y = 2 and -4x + 2y = 6.…
NDA Mathematics 2013
NDA 2013
Mathematics
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If the roots of the equation 3ax² + 2bx + c = 0 are in the ratio 2 : 3,…
NDA Mathematics 2013
NDA 2013
Mathematics
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If the roots of a quadratic equation ax² + bx + c = 0 are α and β, then the…
NDA Mathematics 2013
NDA 2013
Mathematics
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The binary representation of the decimal number 45 is
NDA Mathematics 2013
NDA 2013
Mathematics
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If P(77, 31) = x and C(77, 31) = y, then which one of the following is correct?
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the sum of the coefficients in the expansion of (1 + x)ⁿ?
NDA Mathematics 2013
NDA 2013
Mathematics
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A bag contains balls of two colours, 3 black and 3 white. What is the smallest number of balls which…
NDA Mathematics 2013
NDA 2013
Mathematics
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What is the argument of the complex number (-1 – i) where i = √-1?
NDA Mathematics 2013
NDA 2013