`A = [(costheta,0,sintheta),(0,1,0),(sintheta,0,costheta)]`

If A=[(costheta,-sintheta,0),(sintheta,costheta,0),(0,0,1)] , then adj A equals to

Verify that A(adjA)=I when : A=[{:(cos theta, -sintheta,0),(sintheta,costheta,0),(0,0,1):}]

if A= [{:(costheta,sintheta),(-sintheta,costheta):}], then A A^T =?

If A = ((costheta,-sintheta),(sintheta,costheta)) then

If A=[(costheta,sintheta),(-sintheta,costheta)] and A(a d j\ A)=[(k,0),( 0,k)] , then find the value of k .

If I=[(1 ,0),( 0, 1)] , J=[(0, 1),(-1 ,0)] and B=[(costheta,sintheta),(-sintheta,costheta)] , then B equals a) Icostheta+Jsintheta (b) Isintheta+Jcostheta (c) Icostheta-Jsintheta (d) Icostheta+Jsintheta

If A=[(costheta,-sintheta),(sintheta,costheta)] " then " A^(-1) =?