f x = a cos theta -b sin theta and y = a sin theta + b cos theta then prove that a square+b square = x square+y square 

 

Asked by melmerisb | 7th Dec, 2019, 12:38: AM

Expert Answer:

f x = a cos theta -b sin theta and y = a sin theta + b cos theta

Answered by Renu Varma | 7th Dec, 2019, 06:45: PM