# trignometry

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how to find derivative of (2+cotx)/(7-tanx)

• trignometry -

the derivative of cot x = -csc^2 x
the derivative of tan x = sec^2 x

.. and you do this:
[ low*d(high) - high*d(low) ] / (low)^2

where
high = numerator
low = denominator
d(high) and d(low) = respective derivatives

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