Question

16
EXERCISE 1(C):7
Prove that:
. (i)
sin 2 Asin 3 A-sin 4 Asin5 A+sin 3 A sin 6A
cos2 Acos3 A-cos4 Acos5 A+cos3 A cos6 A
=tan A tan 4 A.
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Answer 1

Answer:

a class nuvvu chaduvuthunav