Surds, Indices and Logarithms.  TOPIC_SOLVED

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.

Surds, Indices and Logarithms.

Postby JiaGengMaths on Thu Apr 19, 2012 8:28 am

Evaluate (log 4 to the base of 5 times log10 to the base of 2)/ log 10^(0.5) to the base of 25 without the use of a calculator. :D :D
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Re: Surds, Indices and Logarithms.

Postby maggiemagnet on Fri Apr 20, 2012 1:14 pm

JiaGengMaths wrote:Evaluate (log 4 to the base of 5 times log10 to the base of 2)/ log 10^(0.5) to the base of 25 without the use of a calculator. :D :D

Do you mean that you have to simplify "log-base5 of 4, multiplied by log-base2 of 10, all divided by log-base25 of the square root of ten"? Thanks!
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Re: Surds, Indices and Logarithms.

Postby JiaGengMaths on Sat Apr 21, 2012 7:00 am

yes
ty
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Re: Surds, Indices and Logarithms.  TOPIC_SOLVED

Postby nona.m.nona on Sat Apr 21, 2012 1:25 pm


I would suggest applying the formula for changing the base of a logarithmic expression, and then cancelling, etc.
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