Question

Calcule os LIMITES:

a)Lim               √2x+1 - 3 / √x-2  -√2
x(-> 4)


b)Lim                             x/√1 - cos(x²)
x(-> 0)

Answer 1

(√2x+1 – (3)) /( √x-2 - √2)  X (√x -2 + √2) / (√x-2 + √2)  X ( √2x+1 +(3)) / (√2x+1 + (3))= 2x -8 (√x-2 + √2) / x – 4 (√2x+1 + (3 )) = lim x-> 4 de  2 (√x-2 + √2) / √2x+1 +(3)) = 2 (2+√2) / 6.

BBMP!!!!!! Pedro Góes