Posted by JYoung on .
Verify the given linear approximation at
a = 0.
Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.)
fourth root of (1 + 2x)≈ 1 + (1/2)x

Calculus Help Please!!! 
Steve,
looks good to me