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

A=[[Cos alpha,sin alpha],[-Sin alpha,cos alpha]] then A^(2)

If A=[[cos alpha,sin alpha],[-sin alpha,cos alpha]] then show that A A^(T)=A^(T)A=I

If A=[[cos alpha,sin alpha],[-sin alpha,cos alpha]] then verify that A'A=I

If A=[[cos alpha,sin alpha-sin alpha,cos alpha]], the find satisfying 0

A=[[cos alpha,sin alpha],[-sin alpha,cos alpha]] find [A^(2)(alpha)]^(-1)

If A(alpha)=[[cos alpha,sin alpha],[-sin alpha,cos alpha]] then A(alpha)A(beta)

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 prove that AA',=I Hence find A^(-1)