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  • Question 1
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  • Question 2
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    Let f: R → R be a mapping such that  Then f is

  • Question 3
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    The value of cos15º− sin15º is

  • Question 4
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    The values of x which satisfy the trigonometric equation

  • Question 5
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    If cos–1 x + cos–1 y = π/2 and tan–1 x – tan–1 y = 0, then x2 + xy + y2 is equal to

  • Question 6
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    The sum of the infinite series cot–1 2 + cot–1 8 + cot–1 18 + cot–1 32 + … is equal to

  • Question 7
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    2 cos-1 x = cos-1 (2x2 -1) holds true if

  • Question 8
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    If A = (aij)3 × 3 is a matrix satisfying the equation x3 – 3x + 1 = 0, then

  • Question 9
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  • Question 10
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    The rows and columns of matrix A will be linearly dependent if

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