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Exponential and Logarithmic Functions

Problems

Logarithmic Functions

Applications

Problem : Is log x an increasing or decreasing function (as xâÜ’âàû )?

It is decreasing.

Problem : What is log39 ?

log39 = 2 .

Problem : What is ln e ?

ln e = 1 .

Problem : What is ?

= logy x .

Problem : Solve for x . 4(log4 x) = 16.

x = 16 .

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