Question

3. Evaluate :
(1)
sin? 63°+ sin? 27°
cos? 17° + cos2 73°
LAN
(ii) sin 25° cos 65° + cos 25° sin 65°​

Answer 1

Answer:

Means what are you trying to tell I can't understand friend

Answer 2

Answer:

(I) sin63°+sin27°

', ' sin(90-63)°+sin(90-27)°

= cos27°+cos63°

=cos90°=}0 ans

Explanation:

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