Question

In log x  y = z, which variable(s) can never be equal to 1?

Answer 1

if logx * y = z
then y = z/log(x), where z nonzero
x can not be 1, otherwise there will be division by 0

Answer 2

so z can never be 1?

Answer 3

x can not be 1, otherwise log(1) = 0 then we will have z/0, which is illegal

Answer 4

ok, thank you