If tan3A=3tan A +k tan^3A/1-3tan^2A,then k is equal to
Asked by azizrajil03
30th January 2019,
7:13 AM
Answered by Expert
Answer:
we have 
hence 
....................(1)
....................(1)By comparing the given trignometric expression in question with eqn.(1), we get k = -1
Answered by Expert
30th January 2019,
11:04 AM
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