Question

Lim x⇒1

x-1
____
1-√x
adalah?

Answer 1

Lim x⇒1    x-1 / (1-√x)

lim       (x-1) (1+√x) / (1-√x) (1+√x)
x⇒1

lim      (x-1) (1+√x) / (1-x)
x⇒1   

lim      -(1+√x)
x⇒1 
        = -(1+√1)
        = - (2)