How do you find the derivative of y=tan^2(3x)y=tan2(3x)?
1 Answer
Sep 8, 2014
By using the Chain Rule twice,
y'=6tan(3x)sec^2(3x)
Let us look at some details.
By Chain Rule,
y'=2tan(3x)cdot(tan(3x))'
by another application of Chain Rule to
=2tan(3x)cdot sec^2(3x)cdot3
by cleaning up a bit,
=6tan(3x)sec^2(3x)