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OpenStudy (anonymous):
let f(x) = rootx+2. Use the limit definition to compute f prime of x
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hartnn (hartnn):
u know the limit definition ?
OpenStudy (anonymous):
yes but I'm having trouble simplifying
hartnn (hartnn):
which step u reached ?
OpenStudy (anonymous):
i figured that to make life easier to replace the square root sign with (x+2) ^1/2
hartnn (hartnn):
but did u multiply and divide by conjugate ?
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OpenStudy (anonymous):
no
hartnn (hartnn):
ok, let me show u:|dw:1348681859218:dw| sorry for bad drawing :\
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