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Get Answers to all your Questions
prove the following
Q(22)
Answers (1)
cot x cot2x - cot3x(cot2x - cotx)
Now we can write cot3x = cot(2x + x)
and we know that
So,
= cotx cot2x - (cot2xcotx -1)
= cotx cot2x - cot2xcotx +1
= 1 = R.H.S.
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