Math, asked by chirag477, 1 year ago

please solve this for me.

please solve this correct and right answer will be awarded with brainlist answer or verified answer so, give ur best.

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Answered by shashankavsthi

◆◆Any query ask in comment section.

◆Hope it will help you.

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chirag477: can u please explain me how u get this answer

shashankavsthi: yes

shashankavsthi: cos(6x)=cos3(2x)

shashankavsthi: use formula of cos(3x) where in place of x use 2x

shashankavsthi: cos3x=4cos^3x-3cosx

Answered by sushmita

so,
the L.H.S = R.H.S.....

..................

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