Lim x=4 4-x/2-akar x

Langsung aja y

lim (4-x) / (2-√x) × (2+√x) / (2+√x)
x→4

lim (4-x)(2+√x) / (4 - x)
x→4

lim 2+√x
x→4

= 2 + √4
= 2 + 2
= 4

semoga berguna +_+