UPSC NDA I 2019 Mathematics Solved Paper

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Question : 111 of 120

Marks: +1, -0

If sin θ+cosθ=√2cosθ , then what is ( cosθ−sin θ) equal to?

[NDA I 2019]

−√2cosθ
−√2sin θ
√2sin θ
2 sinθ

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