User:अनिकेत कश्यप

Sin²x +Cos²x =1 prove formulae

We know that pythagorean theorem

H² =P² +b²

Divide both side H²

H²/H² =p²/H²+ b²/H²    Note  sinx =P/H cosx=b/H

1=sin²x+cos²x h.p

hat