UPSC NDA II 2018 Mathematics Solved Paper
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Question : 43 of 120
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If θ =
( 2 cos θ + 1 ) 10 ( 2 cos 2 θ − 1 ) 10 ( 2 cos θ − 1 ) 10 ( 2 cos 4 θ − 1 ) 10
[NDA II 2018]
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