Question

1. If m = a cose +b sino ; n=asino - bcoso then Prev
that m² + n² = a +b​

Answer 1

Answer:

putting the value in equations

m square+n square =a+b

(a cose +b sino) square+(asino-bcoso)square=a+b

a cose square +b Sino square +2a cose square b sino square=a+b

ab(sino square+coso square) +2a cose square b sino square =a+b