# calculus

posted by
**alexus**
.

find the value of the derivative (if it exist) at the indicated extrema.

1. f(x)=x^2/(x^2+4) at (0,0)

2. f(x)=(x+2)^(2/3) at (-2,0)

posted by
**alexus**
.

find the value of the derivative (if it exist) at the indicated extrema.

1. f(x)=x^2/(x^2+4) at (0,0)

2. f(x)=(x+2)^(2/3) at (-2,0)