Posted by **akash** on Saturday, May 4, 2013 at 2:35pm.

The revenue R for a company selling x units is

R = 700x − 0.1^x2.

(a) Use differentials to approximate the change in revenue as the sales increase from 2900 units to 3000 units.

dR = $

(b) Compare this with the actual change in revenue.

ΔR = $

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