Εικόνες σελίδας
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Ηλεκτρ. έκδοση
[blocks in formation]

600 square of 5 x by triple of 8.

960

triple of 5 × by square of 8.

102125 subtrahend.

19714779 second resolvend.

255 triple of 85.
21675 triple square of 85.

217005 second divisor.

729 cube of 9.

20655 square of 9 x by triple of 85. triple of 9 x by square of 85.

195075

19714779 second subtrahend.

PROOF.

Here 8.59 x 8.59 x 8.59

73.7881 × 8.59 =

633.839779, the same as the given number.

[blocks in formation]

1200 square of 2 x by triple of 100. triple of 2 x by square of 100.

60000

6012008 subtrahend.

PROOF.

Here 10.02 x 10.02 x 10.02 100.4004 x 10.02

= 1006.012008, the same as the given number.

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gre square of 6 x by triple of 9.

1458

triple of 6 x by square of 9.

135736 subtrahend.

13890125 second resolvend.

ess triple of 96.

27648 triple square of 96.

276768 second divisor.

125 cube of 5.

7900 square of 5 x by triple 96. 138240 triple of 5 × by square of 96. 18800125 second subtrahend.

PROOF.

Here 963 x 963 x 965 = .931225 x 965 = Sess2125, the same as the given number.

[blocks in formation]

155736 subtrahend.

20025904 second resolvend.

288 triple of 96.

27648 triple square of 96.

276768 second divisor.

343 cube of 7.

14112 square of 7 x by triple of 96. 193536 triple of 7 x by square of 96. 19495063 second subtrahend.

530841 remainder.

PROOF.

Here .967 x .967 × .967 = .935089 x .967 = .904231063, the cube of the root; to which add the remainder, and we obtain .904761904, the proof required.

CUBE ROOT,

APPLIED TO THE

Solution of several useful Mathematical Problems.

PROBLEM I.

To find the side of a cubical vessel that shall be equal in content to any given vessel, whose form is that of a parallelopipedon, a cylinder, a prism, a cone, &c. &c.

EXAM. 1.

3

Here 216000 = 60 inches, the answer required.

EXAM. 2.

Here 231 x 43 9933, the number of cubic

3

inches in 43 wine gallons; and √9933 = 21.496 inches, the side required.

EXAM. 3.

Here 2150.42 × 48 103220.16, the number of cubic inches contained in 48 malt bushels; and

✔103220.16 46.908 inches, the answer required.

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