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Please please answer this question sin12 A/sin4A – cos 12A/cos 4A a.6 b.2 c.4 d.1

Please please answer this question sin12 A/sin4A – cos 12A/cos 4A
a.6
b.2
c.4
d.1

Grade:11

1 Answers

Ishaan
18 Points
5 years ago
Sin 12A / sin 4A - cos 12A / cos 4A
 
=   sin 12A cos 4A - cos 12A sin 4A / sin 4A cos 4A
=  sin (12A - 4A) / sin 4A cos 4A
= sin 8A / sin 8A÷2
= 2

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