UPSC NDA II 2023 Mathematics Solved Paper
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Consider the following for the next two (02) items that follow :
Lets i n x + s i n y = √ 3 ( cos y − cos x ) ; x + y =
0 < x , y <
Let
[NDA II 2023]
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Question : 77 of 120
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What is a value of s i n 3 x + s i n 3 y ?
[NDA II 2023]
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