" 10."f(a)" tet "A=[[cos theta,sin theta],[-sin theta,cos theta]]," show that "A^(2)=[[cos2 theta," sin "],[-sin2 theta,cos5]

If A=[[cos2 theta,sin2 theta],[-sin2 theta,cos2 theta]] then find A^2

cos theta+sin theta=cos2 theta+sin2 theta

Let A = [ (cos theta, sin theta),(- sin theta, cos theta)] , then show that A ^(2) = [(cos 2 theta, sin 2 theta),( - sin 2 theta, cos 2 theta)]

if A=[{:(costheta,sin theta ),(-sin theta,costheta):}] , then show that : A^(2)=[{:(cos2theta,sin2theta),(-sin2theta,cos2theta):}]

if A=[{:(costheta,sin theta ),(-sin theta,costheta):}] , then show that : A^(2)=[{:(cos2theta,sin2theta),(-sin2theta,cos2theta):}]

If A=[cos2 theta sin2 theta-sin2 theta cos2 theta], find A^(2)

If A=[[sin theta , cos theta],[-cos theta , -sin theta]] then A^(2)=

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

If A=[[sin theta,cos theta-cos theta,sin theta]] then A^(2)=

If f (theta) = [[cos^(2) theta , cos theta sin theta,-sin theta],[cos theta sin theta , sin^(2) theta , cos theta ],[sin theta ,-cos theta , 0]] ,then f ( pi / 7) is