`If cos theta-4sintheta=1, the sintheta+4costheta=`

If cos^2theta-sintheta=1/4 then sintheta=?

If costheta-sintheta=1 , then theta

If 3sintheta+4costheta=5 ,then 4sintheta-3costheta=

If {:A=[(cos theta,-sintheta),(sintheta,costheta)]:} , then which one of the following is not correct?

If {:A=[(cos theta,-sintheta),(sintheta,costheta)]:} , then which one of the following is not correct?

If 3 cos theta-4sintheta=2costheta+sintheta find tantheta .

If {:A=[(cos theta,sintheta),(-sintheta,costheta)]:}," then A.A' is

If {:A=[(cos theta,sintheta),(-sintheta,costheta)]:}," then "A^2=I is true for

The value of det [(cos theta, sintheta),(-sintheta, costheta)] is equal to

Show that costheta [[costheta, sintheta],[-sintheta, cos theta]] + sin theta [[sintheta ,-cos theta],[costheta, sin theta]] =1