What is the second derivative of #f(x)=tan(3x)#?
1 Answer
Dec 14, 2015
Explanation:
We will use the chain rule, together with the derivatives:

#d/dx tan(x) = sec^2(x)# 
#d/dx 3x = 3# 
#d/dx x^2 = 2x# 
# d/dx sec(x) = sec(x)tan(x)#
First Derivative:
Second Derivative: