SOLUTION: {{{In ^4sqrt(ab^2)}}} I do not know how to express this in terms of sums and differences of logarithms. Please help. Thank you very very much.

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Question 153014: I do not know how to express this in terms of sums and differences of logarithms. Please help. Thank you very very much.
Found 2 solutions by Fombitz, nabla:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!

Two logarithm rules are needed here,


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Answer by nabla(475)   (Show Source): You can put this solution on YOUR website!
4th root is the same as to the 1/4 power. We take powers out of logarithms as fraction coefficients.
So =1/4(ln ab^2)
Now, multiplied variables/numbers in logarithms can be taken out as addition.
So (1/4)(ln ab^2)=(1/4)(ln a)+(1/4)(ln b^2)
Now, repeat the first step for the logarithm with b^2.
So (1/4)(ln a)+(1/2)(ln b)

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