Question

(1)
sin2 63° + sin2 27°
cos2 17° + cos2 73°
cos2 (90° - 63°) + sin2 27°
cos? 17° + sin? (90° -73°)
cos2 27° + sin2 27°
cos2 17° + sin? 17°
=
(:: sin2 0 + cos2 0 =1)
= 1​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

all answers are 1 as al are in form of sin2thete+cos2theta