Question

2. Prove that
(a) (a cos 0+b sin 0)2 +(a sin 0-b cos 0)2 = a2 + b2​

Answer 1

Answer:

cos 0 + cos 0=0.(a cos 0+b cos 0 )=0

Answer 2

Step-by-step explanation:

ghjgghbbbnnffvvbc n b bvvjcnncn