Question

derivative of:
1-x^(2/3)

Answer 1

this one is easir than the frist one you posted, just use the power rule

Answer 2

i got -(2/3)x^-(1/3)

Answer 3

but i need the rational exponents to go away and idk how

Answer 4

throw it over one

Answer 5

so what do i get?

Answer 6

(

Answer 7

better yet... what does x equal to?
so: -(2/3)x^-(1/3)=0

Answer 8

?

Answer 9

fractions with a constant term only up top never go to zero unless that term itself is zero....

Answer 10

\[\frac{m}{n}=0\ when\ m=0\]
otherwise it never equals 0

Answer 11

but if your using the derivative to find critical points, then wherever the derivative goes undetermined as a good spot to chk; in this case when x=0

Answer 12

ok thank you!