find the value of following :
cot(-900 degrree )
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-thita hai isliye pahle sin900 degree hoga sin 90×10+0 ans is zero
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cot(900) = cot(5pi) [from degrees to radians]
cot(5pi) = cot(4pi+pi) = cot(pi) = cos(pi)/sin(pi) = -1/0
Therefore cot(900) is undefined
(If you want to keep it in degrees
cot(900) = cot(720+180) = cot(360+360+180) = cot(180) = cos(180)/sin(180) = -1/0)
i think it is correct
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