Evaluate $\displaystyle \int ^{2}_{-2}\frac{dx}{4+x^2}$ directly as well as by the sustitution
$\displaystyle x= \frac {1}{t}$ .Examine as to why the two answers do not tally?
THANK YOU!
Evaluate $\displaystyle \int ^{2}_{-2}\frac{dx}{4+x^2}$ directly as well as by the sustitution
$\displaystyle x= \frac {1}{t}$ .Examine as to why the two answers do not tally?
THANK YOU!
Because there is a problem at t=0 if you substitute x=1/t