Trigonometric Ratios and Identities
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Question : 22 of 64
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The value of 36 ( 4 cos 2 9 ∘ − 1 ) ( 4 cos 2 27 ∘ − 1 ) ( 4 cos 2 81 ∘ − 1 ) ( 4 cos 2 243 ∘ − 1 )
[8-Apr-2023 shift 2]
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