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cos 6a
= cos (2.3a) [3a is theta]
= 2cos^3a - 1 [ cos 2theta =2cos^2theta - 1]
You can also put the other formulas of cos theta .
Hope it will right .
= cos (2.3a) [3a is theta]
= 2cos^3a - 1 [ cos 2theta =2cos^2theta - 1]
You can also put the other formulas of cos theta .
Hope it will right .
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