SOLUTION: how to solve log[5](90)using change of base formula

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Question 730495: how to solve log[5](90)using change of base formula
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
log%285%2C90%29=%28log%2890%29%29%2F%28log%285%29%29....in base 10
=log%283%5E2%2A2%2A5%29%2Flog%285%29
=%28log%283%5E2%29%2Blog%282%29%2Blog%285%29%29%2Flog%285%29
=%282log%283%29%2Blog%282%29%2Blog%285%29%29%2Flog%285%29
=2.7958889470453636409392392873060701381191307318260948
=2.8