Question

uate :
sin? 63° + sin? 27°
cos? 17° + cos² 73°​

Answer 1

Answer:

sin square 63 + cos (90-27)

sin square 63 + cos square 63 = 1 ( it is an identity in trigonometry)

2) sin(90-17) + cos square 73 ( cos = sin(90 - theta)

= sin square 73 + cos square 73 = 1

hope this answer helps you!