Question

Considerando f(x)= x4 – lnx o valor de f'(1) será:

Answer 1

f(x)=x4-inx    valor de x=1
f(x)=4x³-1/(x)

f(1)=4.(1)³-1/(1)
f(1)=4.1-1
f(1)=4-1
f(1)=3