Practicing Success
Practicing Success
CUET Preparation Today
If $y=\frac{e^x+e^{-x}}{e^x-e^{-x}}$ then $\frac{dy}{dx}=$ |
$y^2-1$ $y^2+1$ $1-y^2$ $(y-1)^2$ |
$1-y^2$ |
