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OpenStudy (anonymous):
Verify the identity. cotx minus pi divided by two. = -tan x written as cot(x - (pi/2) = - tan x
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OpenStudy (anonymous):
Please check my answer: cot(x - pi/2) = -tan (x) cot(x + 2pi + (3pi/2)) = -tan(x) -tan(x) = -tan(x)
OpenStudy (shinalcantara):
oh dear. what have you done? you're answer is defying the rules of trigonometry..
OpenStudy (shinalcantara):
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OpenStudy (shinalcantara):
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