" If "A=[[cos alpha,sin alpha],[-sin alpha,cos alpha]]," then "A^(2)" equal "

A=[[cos alpha,sin alpha],[-sin alpha,cos alpha]] , then find | A |

If A=[(cos alpha, sin alpha),(-sin alpha, cos alpha)] then "AA"^(T)=

If A = [(cos alpha,sin alpha),(-sin alpha,cos alpha)] then A^(10) is equal to

If A= [[cos alpha, -sin alpha],[sin alpha, cos alpha]] , then A + A'= I, the value of a is :

If A =[(cos alpha, sin alpha),(-sin alpha, cos alpha)] , then find A^(T) A.

If A = [(cos alpha,sin alpha),(-sin alpha,cos alpha)] , then A^(10) = .........

If A,=[[cos alpha,sin alpha-sin alpha,cos alpha]] then show that ,A^(2)=[[cos2 alpha,sin2 alpha-sin2 alpha,cos2 alpha]]

If A=[{:(cos alpha, sin alpha),(-sin alpha, cos alpha):}] , then what is A"A"^(T) equal to (where A^(T) is the transpose of A) ?