[" यदि "x=(a+b)cos theta-b cos((a+b)/(b))theta],[" तथा "y=(a+b)sin theta-b sin((a+b)/(b))theta" तो हिद्ध "]

If x=(a+b)cos theta -b cos ((a+b)/(b))theta and y =(a+b) sin theta -b sin ((a+b)/(2b))theta then prove that

If x=(a+b)cos theta -b cos ((a+b)/(b))theta and y =(a+b) sin theta -b sin ((a+b)/(2b))theta then prove that

If (x)/(a) cos theta + (y)/(b) sin theta = 1 , (x)/(a) sin theta - (y)/(b) cos theta =1 then

x = a cos theta, y = b sin theta .

If a cos theta + b sin theta = c " then " (a sin theta - b cos theta )^(2) =

If sin theta=(a)/(b), then cos theta=?

If x = a cos theta + b sin theta and y=a sin theta-b cos theta , the value of x^2+y^2 is: यदि x = a cos theta + b sin theta तथा y=a sin theta-b cos theta है, तो x^2+y^2 का मान ज्ञात करें |