Respostas

  • Usuário do Brainly
2014-06-10T19:46:58-03:00
A)
f(x)=2x
f'(x)=2
f'(2)=2

b)
f(x)=x²+x
f'(x)=2x+1
f'(1)=2.1+1
f'(1)=3