MATH
posted by ROBIN .
Consider the expression logbase5 a=n
a) For what value(s) of a will n be a positive number?
b) For what value(s) of a will n be a negative number?
c) For what value(s) of a will n be undefined?

5^n > 1 if n>0
5^n < 1 if n<0
log is undefined for a <= 0
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