# Calculus help!?

The question is:
y=x+(1/x) Find f ' (a) and equation of the tangent line. Start by using the formula f ' (a) = lim (f(a+h) - f(a)) / h
h->0
This is a question on my homework and I can't figure out how to break it down. I know how to plug it...
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The question is:

y=x+(1/x) Find f ' (a) and equation of the tangent line. Start by using the formula f ' (a) = lim (f(a+h) - f(a)) / h

h->0

This is a question on my homework and I can't figure out how to break it down. I know how to plug it into the equation but I'm having trouble simplifying it. If anyone can help I would greatly appreciate it! Thanks!

y=x+(1/x) Find f ' (a) and equation of the tangent line. Start by using the formula f ' (a) = lim (f(a+h) - f(a)) / h

h->0

This is a question on my homework and I can't figure out how to break it down. I know how to plug it into the equation but I'm having trouble simplifying it. If anyone can help I would greatly appreciate it! Thanks!

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