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OpenStudy (anonymous):
Can someone please explain all the steps to this problem: http://imageshack.us/scaled/landing/28/lateximg.png
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OpenStudy (anonymous):
the first step is plugging 'a' into \[\frac{ f(x) -f(a) }{x-a}\]
OpenStudy (anonymous):
the second step is using the given: f(x) = 1/x
OpenStudy (anonymous):
the third steps is finding a CD in the numerator and then simplifying
OpenStudy (anonymous):
the last step is taking the limit x->2
OpenStudy (anonymous):
Can you show me how to find a common denominator...That is the step that I am really lost at
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OpenStudy (anonymous):
\[\frac{ 1 }{x } *\frac{ 2 }{2}- \frac{ 1 }{2} *\frac{ x }{x} = \frac{ 2-x }{ 2x }\]
OpenStudy (anonymous):
thank u!
OpenStudy (anonymous):
sure
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