Question

Calcular letra :(B) , (C) , (D) ???​

Answer 1

b) f(x)=log3(x)
f(9)=log3(9)
3^x=9
3^x=3²
x=2
f(9)=2

c) f(27)=log3(27)
3^x=27
3^x=3³
x=3
f(27)=3

d) f(x)=5
log3(x)=5
x=3^5
x=243