" 19.If "tan theta=(a)/(b')" show that "((a sin theta-b cos theta))/((a sin theta+b cos theta))=((a^(2)-b^(2)))/((a^(2)+b))

If tan theta=(a)/(b), show that (a sin theta-b cos theta)/(a sin theta+b cos theta)=(a^(2)-b^(2))/(a^(2)+b^(2))

If tan theta=(a)/(b), prove that (a sin theta-b cos theta)/(a sin theta+b cos theta)=(a^(2)-b^(2))/(a^(2)+b^(2))

If tan theta=(a)/(b) such that (a sin theta-b cos theta)/(a sin theta+b cos theta)=(a^(2)-b^(2))/(a^(2)+b^(2))^(k) then k is ?

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

If tan theta = 1/b , then ( a sin theta - b cos theta )/( a sin theta + b cos theta) is

If tan theta =(a)/(b) prove that a sin 2theta + b cos 2theta =b

If cot theta = (b)/a " then " ( a sin theta - b cos theta )/( a sin theta + b cos theta ) =

If tan theta=a/b then (a sin theta-b cos theta)/(a sin theta+bcos theta)=

If tan theta=(a)/(b), then (a sin theta+b cos theta)/(a sin theta-b cos theta) is equal to (a^(2)+b^(2))/(a^(2)-b^(2))(b)(a^(2)-b^(2))/(a^(2)+b^(2))(c)(a+b)/(a-b)(d)(a-b)/(a+b)

If tan theta =a/b , prove that a sin 2 theta+b cos 2 theta=b .