Question

Determine os logaritmos a seguir :
a) log²32=x
b) log×27=3
c) log ⁹9=x

Answer 1

resposta:

a) log²32=x

2^x=32

2^x=2^5 cancela as bases

x=5

b)log×27=3

x3=27

x3=33

x=3 cancela as potências

c) log ⁹9=x

9^x=91

x=1