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Mathematics 8 Online
OpenStudy (anonymous):

How do i expand this? please help

OpenStudy (anonymous):

\[logb \sqrt{57/74}\]

OpenStudy (john_es):

Use the properties of logarithm, \[\log_b\left(\sqrt{\frac{c}{d}}\right)=\frac{1}{2}\log_b(c/d)=\frac{1}{2}(\log_bc-\log_bd)\]

OpenStudy (anonymous):

would it be 1/2logb57-1/2logb74?

OpenStudy (john_es):

Assuming b is the base of the logarithm, yes it should be like that.

OpenStudy (anonymous):

\[\frac{ 1 }{ 2 }logb57-\frac{ 1 }{ 2 }logb74\]

OpenStudy (anonymous):

sorry i had to write it out just to be sure lol

OpenStudy (john_es):

Yes, but I ask you now if b is the base of the logarithm or a multiplicative constant? I think it is the base, but it depends on the original problem.

OpenStudy (anonymous):

Oh sorry the b is at the bottom of the log it's like this |dw:1401783437885:dw|

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