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domyy

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## Homework Statement

Find the equation of the tangent line to the graph of y = lnx

^{2}at the point (2, ln4)

## Homework Equations

## The Attempt at a Solution

y' = (lnx

^{2})'

y' = 2lnx

y' = (2)(lnx)' + (lnx)(2)'

y' = 2/x

Mtan/(2,ln4) = 2/2 = 1

Equation of tan line:

y - ln4 = 1(x-2)

y = x - 2 + ln4