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venger
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Homework Statement
F(x) = [x+1 / x-1] coordinates (2,3)
Homework Equations
First principle Mtang=(F(x)-F(a))/x-a
second principle
finding the derivatives at first glance
The Attempt at a Solution
Mtang=(F(x)-F(a))/x-a
[x+1/x-1]-(3)/(x-2)
Multiply by (x-1/x-1) to get
x+1 - 3(x-1)
----------- <- over (fraction)
(x-2)(x-1)
<<
x+1-3
---------- <- Over (fraction)
(x-2)
<<
x-2
-----
x-2
equals ONE!
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