- Calculus and Analysis
Algebra in a Calculus Problem - Finding the Second Derivative of a Function
How did the book get from here:
-2X(1+x^2)^2 - 4X(1-x^2)(1+x^2)
(1 + x^2)^4
-2x (1+ x^2)[1+x^2+2(1-x^2]
I have worked and reworked and I cannot get that numerator to become that. What is the deal?
(This is in the middle of trying to find the second derivative of a function, although I don't believe that should make a difference as I am still plowing through the algebra here)