Recent content by Willjohnc

Thank you, for some reason something wasn't clicking. Found using the product rule with these problems really simplifies them so, thanks again.

Let f(x)=x^2/(1-x^2 ) a) Find f'(x) b) Find f"(x) For the answer to a) they give f'(x)=2x/〖(1-x^2)〗^2 and for b) f"(x)=2 (1+〖3x〗^2)/〖(1-x^2)〗^3 Now after many rounds of trying i have not been able to get an answer remotely close to what they have given. i don;t know if it is due to me...