Lynds

This page lists questions and answers that were posted by visitors named Lynds.

Questions

The following questions were asked by visitors named Lynds.

If y= e^x - e^-x / e^x + e^-x , then y'= Please help

A particle moves along the X axis with the acceleration a(t)=12t-6. If v(0)=3, find the total distance the particle traveled from t=0 to t=2. Please help

Answers

The following answers were posted by visitors named Lynds.

I took the derivative and got Y'= (e^x+ e^-x) ( e^x + e^-x) - (e^x + e^-x) (e^x - e^-x)/ (e^x + e^-x)^2

I know the correct answer is 4 / (e^x + e^-x)^2