If A=[(cos x, sin x),(-sin x,cos x)], th...

If `A=[(cos x, sin x),(-sin x,cos x)]`, then `A(adj A)=`

A

`[(1,0),(0,1)]`

B

`[(0,1),(1,0)]`

C

`[(1,1),(0,0)]`

D

`[(-2,0),(0,-2)]`

Verified by Experts

The correct Answer is:

a

Similar Questions

Explore conceptually related problems

(sin3x-sinx)/(cos2x) =

If y=(cos x - sin x)/(cos x + sinx) , then ((d^(2)y)/(dx^(2)))/((dy)/(dx))

(sin 5x + sin 3x)/(cos 5x + cos 3x) = tan 4x

int (sin2x)/(sin^4x+cos^4x) dx

(sin5x+sin3x)/(cos5x+cos3x)=

If y = sin[cos^(-1){sin(cos^(-1) x)}], "then" (dy)/(dx)" at x" = (1)/(2)

Evaluate: int e^x (sin x+ cos x) dx

If tan x= (2b)/(a-c), a!=c, y = a cos^2 x +2b sin x*cos x + c sin^2x, z = a sin^2 x-2b sin x*cos x + c.cos^2x, then

If sin x + sin^(2) x + sin^(3) x = 1 , then prove that cos^(6)x - 4 cos^(4) x + 8 cos^(2) x - 4 = 0 .