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Exponential to Logarithmic Form

Exponential functions are inverses of logarithmic functions.

b y = x if and only if y = log b x for all x > 0 and 0 < b 1 .

Remember a logarithm is an exponent !

Example 1:

Write 2 3 = 8 in logarithmic form.

log 2 8 = 3

Example 2:

Write c a = d in logarithmic form.

log c d = a