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If A=[(cas alpha, sinalpha),(-sinalpha,c...

If `A=[(cas alpha, sinalpha),(-sinalpha,cosalpha)], ` AA'=

A

A

B

zero matrix

C

A '

D

I

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The correct Answer is:
D
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KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2018-MATHEMATICS
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  3. If A=[(cas alpha, sinalpha),(-sinalpha,cosalpha)], AA'=

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  4. If x, y , in , R , then the value of the determinant A=[{:((5^x+5^(...

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  5. The value of determine |{:(a-b,b+c,a),(b-a,c+a,b),(c-a,a+b,c):}|is

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  6. If (x1,y1) , (x2,y2) and (x3,y3) are the vertices of a triangle whose ...

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  7. Let A be a square matrix of order 3xx3 , then |5A| =

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  9. If cosy = xcos (a+y) with cos a ne pm1 , then (dy)/(dx) is equal to

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  10. If f(x) = |cosx-sinx|, then f ' (pi//6) is equal to

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  11. If y=sqrt(x+sqrt(x+sqrt(x+..........oo))), then (dy)/(dx) =

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  14. The maximum value of (1/x)^x is

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  15. f(x) =x^x has stationary point is

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  16. The maximum area of a rectangle inscribed in the circle (x+1)^(2)+(y-3...

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  17. int1/(1+e^x)dx is equal to

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  18. int1/(sqrt(3-6x-9x^2))dxis equal to

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