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September 18, 2014

September 18, 2014

Posted by **Seth** on Tuesday, April 2, 2013 at 7:13am.

- Please solve it.Logarithm -
**Reiny**, Tuesday, April 2, 2013 at 8:21am6log(x^2 + 1) = 5

log(x^2 + 1 = 5/6

x^2+ 1 = 10^(5/6) , by definition of logs

x^2 = 10^5/6) - 1

x = ±√(10^(5/6 - 1)

= appr ± 2.41

check:

6 log(2.41^1 + 1)

= 6log 6.8081

= 6(.83302...) = 4.9981.. , not bad

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