# A firm's long-run total cost curve is TC(Q) = 1000Q 30Q2 + Q3. Derive the expression for the corresponding long-run average cost curve and then sketch it. At what quantity is minimum efficient scale?

A firm's long-run total cost curve is TC(Q) = 1000Q − 30Q2 + Q3. Derive the expression for the corresponding long-run average cost curve and then sketch it. At what quantity is minimum efficient scale?

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