Verify the identity. cot(x minus pi divided by two). = -tan x

asked Oct 12, 2017 81.2k views

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Verify the identity.

cot(x minus pi divided by two). = -tan x

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cot(x -pi/2) = (cos(x -pi/2))/(sin(x -pi/2)) = - sin x / cos x = - tan x

Nazy answered Oct 16, 2017

by Nazy

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