3. A trough for holding water is formed by taking a sheet of metal 60 inches wide and folding up the 20 inches on each end. Find the angle (an angle of inclination with the horizontal) that will maximize the amount of that the trough can hold.

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ISBN:9780470458365
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3. A trough for holding water is formed by taking a sheet of metal 60 inches wide and folding up the 20 inches on each end. Find the angle (an angle of inclination with the horizontal) that will maximize the amount of that the trough can hold.
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