Pre-Calculus - What is change of base and how do we apply it

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👉 Learn how to evaluate logarithms using a change of base formula. The change of base formula states that when we have a log of a to the base of b, we can evaluate the logarithm by using a common base for both a and b as follows: log of a to the base of x divided by log of b to the base of x. (i.e. log [base b] (a) = log [base x] (a) / log [base x] (b). Doing so we can change the base of the given logarithm to a base that can be easily evaluated (usually base 10 which is the base used by calculators or base e).

Organized Videos:
✅Evaluate Logarithms
✅Change of Base Formula
✅Rules of Logarithms
✅Logarithms | Learn About
✅How to Evaluate Logarithms with Radicals
✅How to Evaluate Logarithms with Fractions
✅How to Evaluate Logarithms
✅How to Evaluate Natural Logarithms
✅How to Evaluate Logarithmic Expressions

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#logarithmicfunctions #brianmclogan
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sorry I do not work on individual problems as I am very busy working on my own videos to post online. IO would tell you to solve this problem by substitution meaning solve for one variable and then plug that expression into the other equation for the variable solved.

brianmclogan
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I have watched the whole playlist so far. thumbs up for this one.

benjaminkuhn
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Good day Mr Mclogan, can you solve this for me?

36= 10-c * t
36= 10+c * t-1.5

MrAmazinj