Question

sin 0,
If
cos - sin 0 = sqrt2
then
cos + sin 0 =
1) 0
2) + 2 cos 0
3) + 2 sin e
4) none of these​

Answer 1

ANSWER

Given sinθ+cosθ=2cosθ

⟹sinθ=(2−1)cosθ

⟹cosθ=2−11sinθ=(2+1)sinθ

cosθ−sinθ=(2+1)sinθ−sinθ=2sinθ

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Answer 2

Answer:

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