[" 36.If "A=[[cos theta,sin theta],[-sin theta,cos theta]]," then what is "],[A^(3)" equal to? "]

If A = [[cos theta, sin theta],[-sin theta, cos theta]] , then what is A^(-1) ?

If cos theta-sin theta=sqrt(2)sin theta then cos theta+sin theta is equal to

Simplify: cos theta[[cos theta , sin theta],[-sin theta , cos theta]]+sin theta[[sin theta, -cos theta],[cos theta ,sin theta]] .

Simplify, costheta[[cos theta, sin theta],[-sin theta, cos theta]] + sin theta [[sin theta, -cos theta],[cos theta, sin theta]]

If sin theta+cos theta=1, then sin theta cos theta is equal to :

If sin^(3) theta+sin theta cos theta+ cos^(3) theta=1 , then theta is equal to (n in Z)

If sin^(3) theta+sin theta cos theta+ cos^(3) theta=1 , then theta is equal to (n in Z)

If sin^(3) theta+sin theta cos theta+ cos^(3) theta=1 , then theta is equal to (n in Z)

(sin 3theta)/(sin theta)-(cos 3theta)/(cos theta)=