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find the value of cot 2 ​​∂+cot 2 2∂+cot 2 4 ∂ where ∂=(pie/7)

find the value of cot2​​∂+cot22∂+cot24
where ∂=(pie/7)

Grade:11

1 Answers

Venkatesh Lakshminarayanan
38 Points
6 years ago
pls apply cos2x=cos^2x-sin^2x formula you may get

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