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Mathematics 7 Online
OpenStudy (anonymous):

(cot^-1)(whole root (1 + cos3x)/1 - cos3x)) can someone differentiate it w.r.t x

OpenStudy (anonymous):

\[\large \cot^{-1} \sqrt{\frac {1+\cos3x}{1-\cos3x}}\] that? holy smokes!!

OpenStudy (apoorvk):

rationalise.|dw:1337418145657:dw| now what though?

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