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Reported Question / Answer
Q.) sin(x+90°) + sin(x-90°) =
1)
1/√(2cos(x))
2)
√(3)/2sin(x)
3)
1/√(2sin(x))
4)
0
5)
NULL
Answer :
4
Thank you for reporting wrong Question / Answer / Options
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Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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