Question

a cos theta + b sin theta is = X and a sin theta - B cos theta=y
Find sin theta and Cos theta

Answer 1

Answer:

sin theta=

$\frac{xb + ay}{ {a}^{2} + {b}^{2} }$

cos theta=

$\frac{ax - by}{ {a}^{2} + {b}^{2} }$