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(sin x / cos 3x)+(sin 3x /sin 9x)+(sin 9x/sin 27x)=(1/2)*(tan 27x- tan x)

(sin x / cos 3x)+(sin 3x /sin 9x)+(sin 9x/sin 27x)=(1/2)*(tan 27x- tan x)

Grade:11

1 Answers

Vijay Luxmi Askiitiansexpert
357 Points
13 years ago

Hi Divya,

There is mistake in the L.H.S side .. so please repost your question.

 

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