11. For the following total costs, determine if there are constant economies of scale, economies of scale, or diseconomies of scales at Q = 1 and Q = 5. Prove, with math, which economy of scale the cost function is at these two quantities. a. $TC = 100 + 25Q^2$ b. $TC = 25Q^2 - 100$ c. $TC = 25Q^2 - 20Q + 100$ d. $TC = 25Q^2 + 20Q - 100$
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