Sunday, March 25, 2012

exponents that are variables

today im showing you how to solve for exponents that is a vairable. the steps are listed below and will be followed with examples to clarify the process.
1) take the log or ln of both sides *use ln where there is an e*
2) put into calculator if asked exact values don't get input in a calculator



EX:
3^x = 12
log 3x = log 12
x= log 12 / log 3
x= 2.26

(the square root of) e^x = 50
ln e^1/2x = ln 50
x= (ln 50 / ln e) *2
x=7.82

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