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If=[(cosalpha,sinalpha),(-sinalpha,cosal...

If`=[(cosalpha,sinalpha),(-sinalpha,cosalpha)]` thhen A'A is

A

2I

B

I

C

`-I`

D

3I

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XII BOARDS PREVIOUS YEAR-CUET MOCK TEST 2022-Question
  1. tan^(-1)sqrt3-cot^(-1)(-sqrt3) is equal to

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  2. A system of Linear equations represented in matrix form AX=0, A is ma...

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  3. If=[(cosalpha,sinalpha),(-sinalpha,cosalpha)] thhen A'A is

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  4. Which one of the following is incorrect.

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  5. The inverse of matrices A. Where A =|(2,5),(1,3)| is

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  6. If A is a square matrix such that A^2 = A, then (I + A)^3 – l is equal...

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  7. Statement I: If any two rows(or columns) of a determinant are identica...

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  8. Let A be a square matrix of order n xxn, then |kA| is equal to

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  9. For what value of k,Points (1,3),(3,9) and (0,k) are collinear

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  10. Statement I: A square matrix A is invertible if and only if A is a non...

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  11. For what value ofk, the system of linear equations 3x-y-2z=2, 2y-kz=1,...

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  12. If A=[(1,3,3),(1,4,3),(1,3,4)] then adj(A) is

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  13. The function f(x) = [x], where [x] = greatest integer of

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  14. The value of integral int(-1)^(1)|x|dx is

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  15. If int((1+logx)^2)/(x)dx =F(x)+C , where C is arbitrary constant, the...

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  16. If int(cosx)/((1-sinx)(2-sinx))dx =F(x)+C then F(X) is

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  17. Value of int xlog xdx is

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  18. The value of int(0)^(3) |x-2| dx is

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  19. The area of the region bounded by the curve y^2 = x and the lines x=1...

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  20. If the solution of (sinx)^(3)xx(dx)/(dy) = sin y is A cos y + B cos x ...

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