Question

l
cot 0 = 15/8 =, then evaluate
(2+2 sin )(1-sin o)
8
(1 + cos O)(2-2 cos 0)
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Answer 1

Answer:

(2+2 sin A) (1-sin A)/(1+cos A) (2-2 cos A) = 2(1+sin A) (1-sin A)/2(1+COSA) (1-сos A)

= (1-sin2A)/(1-cos2A)

= cos?A/sin?A

= cot2A

= 225/64