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Reported Question / Answer
Q.) cot(α + β) =
1)
cotαcotβ-1/cotα+cotβ
2)
cotαcotβ+1/cotα-cotβ
3)
cotαcotβ+1/cotα+cotβ
4)
None of the Above
5)
NULL
Answer :
1
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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