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If |s in x+cos x|=|s in x|+|cos x|(s in ...

If `|s in x+cos x|=|s in x|+|cos x|(s in x ,cos x!=0)` , then in which quadrant foes `x` lie?

A

`-sqrt(3)le a le sqrt(3)`

B

`-sqrt(2) le a le sqrt(2)`

C

`-1 le a le 1`

D

none of these

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The correct Answer is:
a
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