Question

lim (x)/(2 -√(4-x))as x->-0

Answer 1

Resposta:

lim x/[2 -√(4-x)]

x-->-0

lim x[2 +√(4-x)]/{[2 -√(4-x)]*[2 +√(4-x)]}

x-->0

lim x[2 +√(4-x)]/[2² -√(4-x)²]

x-->0

lim x*[2 +√(4-x)]/[4 -(4-x)]

x-->0

lim x*[2 +√(4-x)]/x

x-->0

lim 2 +√(4-x)  = 4

x-->0