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If tan3A=3tan A +k tan^3A/1-3tan^2A,then k is equal to
Asked by azizrajil03 | 30 Jan, 2019, 07:13: AM
Expert Answer
we have
hence ....................(1)
By comparing the given trignometric expression in question with eqn.(1), we get k = -1
Answered by Thiyagarajan K | 30 Jan, 2019, 11:04: AM
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