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Prove the identity (sin6x)/(1+cos6x)=tan3x.
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Apr 23, 2019
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Prove the identity (sin6x)/(1+cos6x)=tan3x.
Mathematics
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Corinne Kubler
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Use double angle identity
We can relate '6x' to '3x' in the same way since 6 is 2*3.
Now sub into left side of identity. Simplify until it equals right side.
Jqno
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Apr 27, 2019
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