Question

Sendo log3 9 =a, log2 b=4 e logc 8= 3 o valor de a+b+c e?

Answer 1

log3 9 =a  

3^x=a    

a=2
____________

log2 b=4 

2^4=b

b=16
___________ 

 logc 8= 3

 c^3=8

c=2

Resposta: 20