38 - 40 Solved problems in maxima and minima
Problem 38
A cylindrical glass jar has a plastic top. If the plastic is half as expensive as glass, per unit area, find the most economical proportion of the jar.
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35 - 37 Solved problems in maxima and minima
Problem 35
A page is to contain 24 sq. in. of print. The margins at top and bottom are 1.5 in., at the sides 1 in. Find the most economical dimensions of the page.
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32 - 34 Maxima and minima problems of a rectangle inscribed in a triangle
Problem 32
Find the dimension of the largest rectangular building that can be placed on a right-triangular lot, facing one of the perpendicular sides.
29 - 31 Solved problems in maxima and minima
Problem 29
The sum of the length and girth of a container of square cross section is a inches. Find the maximum volume.
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28 - Solved problem in maxima and minima
Problem 28
The perimeter of an isosceles triangle is P inches. Find the maximum area.
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25 - 27 Solved problems in maxima and minima
Problem 25
Find the most economical proportions of a quart can.
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21 - 24 Solved problems in maxima and minima
Problem 21
Find the rectangle of maximum perimeter inscribed in a given circle.
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18 - 20 Rectangular beam in maxima and minima problems
Problem 18
The strength of a rectangular beam is proportional to the breadth and the square of the depth. Find the shape of the largest beam that can be cut from a log of given size.
15 - 17 Box open at the top in maxima and minima
Problem 15
A box is to be made of a piece of cardboard 9 inches square by cutting equal squares out of the corners and turning up the sides. Find the volume of the largest box that can be made in this way.
12 - 14 Rectangular Lot Problems in Maxima and Minima
Problem 12
A rectangular field of fixed area is to be enclosed and divided into three lots by parallels to one of the sides. What should be the relative dimensions of the field to make the amount of fencing minimum?
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