Question

a) Log4x = 2
b) Log3x = -2
c) Log81x = 1⁄4

Answer 1

Resposta:

a)x=$4^{2}$  logo x=16

b)x=$3^{-2}$ logo x=$\frac{1}{9}$

c) x=$81^{1/4}$ logo x=$\sqrt[4]{81}$ entao x=3