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Solution 2:
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Solution 3:
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Solution 4:
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Solution 5:
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Solution 6:
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Solution 7:
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To find maximum or minimum we equate F’(x)=0

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At this value we get minimum:
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The maximum occurs at :
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Solution 8:
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Slope of tangent is:




At x=e slope is:




At x=e y is:
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Solution 9:
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Solution 10:
Sales is given by function f(x)
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When complimentary copies is:
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