Find f ' (1) if f(x)=n√x

Question

or x^1/n

options
a. 1
b. 1/n
c. n
d. (1-n)/n
e. 1- 1/n

Answer 1

nvm i got it, its 1/n

Answer 2

if f(x)=n√x = n (x)^(1/2)
f'(x) = (1/2)n x^(-1/2)
= n/(2√x)

f'(1) = n/2 <------ none of the given choices