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OpenStudy (anonymous):
Im having a problem this ! Let f(t)=4 t^2 + 4/t^2. Find the slope of the curve at t = -3. Give both exact (symbolic) and approximate (numeric) answers.
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OpenStudy (anonymous):
df/dt=8t-2/t^2 so t=-3 => 8*(-3)-2/(-3)^2 -24-2/9 ! (so far I dont trust what I did)
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