If `tan theta = b/a,` then find the value of `a cos 2theta + b sin 2theta`.

If tan theta=(b)/(a), then find the value of a cos2 theta+b sin2 theta

If a cos theta-b sin theta = c, then find the value of a sin theta + b cos theta.

If tan theta = a/b then find the simpliest value of (b cos theta-a sin theta)/(b cos theta+ a sin theta)

If tan theta=(b)/(a), find the value of a cos2 theta+b sin2 theta

If a cos theta-b sin theta=c, then find the value of a sin theta+b cos theta

If a cos theta-b sin theta=c, then find the value of a sin theta+b cos theta

If tan theta=(a)/(b) then find the value of (cos theta+sin theta)/(cos theta-sin theta)

If 5 tan theta =4 then find the value of (5 sin theta - cos theta)/(sin theta + 3 cos theta)

If theta be a positive acute angle and tan theta=(a)/(b) , then find the value of (a sin theta-b cos theta)/(a sin theta+b cos theta).

If b tan theta = a find the value of (cos theta + sin theta )/( cos theta - sin theta)