Question

Se a= 16 e x= 5/4, quanto vale a^x?

Answer 1

[] base do log

16^5/4 = y

4^2(5/4) =y
4^10/4=y

log 4^10/4 = log y

10/4 log[2] 4 = log[2] y
10/4 . 2 = log[2] y 
5=log[2] y

2^5 = y
y= 32