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

If , find
${\mathrm{log}}_{7}9$
in terms of A and B.

You can still ask an expert for help

• Questions are typically answered in as fast as 30 minutes

Solve your problem for the price of one coffee

• Math expert for every subject
• Pay only if we can solve it

gotovub

Use the change of base property:
${\mathrm{log}}_{7}9=\frac{\mathrm{log}9}{\mathrm{log}7}=\frac{\mathrm{log}{3}^{2}}{B}=\frac{2\mathrm{log}3}{B}$
$=\frac{2A}{B}$