1) The curve with equation y=f(x) passes through the point (3,-1) and f '(x)=2x+5. find f(x).
2) find s in terms of t, if ds/dt=t+3-1/t^2 and s=6 and t=1.
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You know that the point lies on the curve, so substitute it in and solve for .
Now substitute and to find .
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