Question

Lim cos(pi+h)+1 / h
h->0

evaluate the limit

Answer 1

by applying hopital's rule
Lim cos(pi+h)+1 / h = Lim (cos(pi+h)+1)' / h' = Lim -sin(pi+h)+1 / 1= -1/1=-1
h->0 h->0 h->0