Question

If log 3 = A and log 7 = B, findlog_7 9in terms of A and B.

Logarithms
ANSWERED
asked 2020-11-23

If \(\log 3 = A \text{ and } \log 7 = B\), find
\(\log_7 9\)
in terms of A and B.

Answers (1)

2020-11-24

Use the change of base property:
\(\log_7 9 =(\log9)/(\log7)=(\log3^2)/(B)=(2\log3)/(B)\)
\(=(2A)/(B)\)

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