CURRENTLY SOLD OUT

An Elementary Course of Mathematics by Woolwich Royal Military Academy (2012, Trade Paperback)

About this product

Product Information

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1853 Excerpt: ...angles at S of the tetrahedral angle S. ABCD are together less than four right angles. Generally. The pentrahedral angle is reduced in the same manner to the tetrahedral, and its plane angles s'hown to be less; and hence less than those of the tetrahedral angle, and thence again less than four right angles. PROPOSITION IV. If from any point within a trihedral angle, perpendiculars be drawn to the faces, these perpendiculars will be the edges rf a new trihedral angle, which has the following relations to the original one: --(1.) Its edges will be perpendicular to the faces of the original; (2.) Its faces will be perpendicular to the edges of the original; (3.) Its plane angles will be the supplements of the opposite profile angles of the original; and (4.) Its profile angles will be the supplements of the plane angles of the original. (1.) This is but a repetition of the hypothesis, for the purpose of enumerating the connected properties seriatim. (2.) Let S. ABC be the original trihedral angle; and from any point s within it let perpendiculars sa, sb, sc to the faces BSC, CSA, ASB be drawn: the planes bsc, csa, asb will be perpendicular to the edges SA, SB, SC, respectively. For let the plane bsc cut the planes BSA, ASC in c A, b A. Then since sc is perpendicular to the plane BSA, the plane bsc through it is perpendicular to BSA (Prop. xvi., Chap. nX In like manner the plane bsc through bs is perpendicular to the plane ASC. Wherefore the plane bsc, being V ?f.2' Ihe angle CDA is equal to two right angles: and in Fig. S, the angle CDA is the reverse angle. perpendicular to both the planes BSA, ASC, is perpendicular to SA their common intersection Prop. xvni., Chap. n.). The two perpendiculars sb, sc determine, therefore, a plane perpendicular to the edge..

Product Identifiers

Publisher
General Books LLC
ISBN-10
1130047504
ISBN-13
9781130047509
eBay Product ID (ePID)
121879395

Product Key Features

Book Title
Elementary Course of Mathematics
Author
Woolwich Royal Military Academy
Format
Trade Paperback
Language
English
Publication Year
2012
Number of Pages
142 Pages

Dimensions

Item Length
9.7in
Item Height
0.3in
Item Width
7.4in
Item Weight
9.5 Oz

Best Selling in Books

See all

Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Books

The Lost Book of Herbal Remedies by Claude Davis (2018, Paperback)
4.8 out of 5 stars based on 384 product ratings
$47.00 New
$39.99 Used
Outlive Gifford Bil (2023,Paperback)
4.8 out of 5 stars based on 8 product ratings
$11.90 New
$8.99 Used
The Women : A Novel by Kristin Hannah (2024, Hardcover)
5.0 out of 5 stars based on 9 product ratings
$17.00 New
$7.99 Used
Ugly's Electrical References, 2023 Edition by Charles R. Miller (2023, Spiral)
4.9 out of 5 stars based on 15 product ratings
$11.19 New
$9.95 Used
For Love of Country : Leave the Democrat Party Behind by Tulsi Gabbard (2024, Hardcover)
No ratings or reviews yet
$26.75 New
$10.99 Used
The Empyrean Ser.: Iron Flame by Rebecca Yarros (2023, Hardcover)
5.0 out of 5 stars based on 3 product ratings
$14.99 New
$10.77 Used
A Marketplace Book Ser.: The Candlestick Course by Steve Nison (2003, Trade Paperback)
5.0 out of 5 stars based on 6 product ratings
$9.97 New
---- Used

Save on Books

Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Books

For Love of Country: Leave the Democrat Party Behind HARDCOVER 2024 by Tulsi ...
$25.00
Trending at $30.53
A Marketplace Book Ser.: The Candlestick Course by Steve Nison USA STOCK
$12.79
Trending at $14.00
New Tom Selleck You Never Know: A Memoir Signed Autographed Hardcover Book
$49.88
Trending at $69.98
Iron Flame by Rebecca Yarros (First Edition 2023)
$29.99
Trending at $49.99
Harry Potter Paperback Box Set [Books 1-7]
$25.00
Trending at $36.99
Can't Hurt Me : Master Your Mind and Defy the Odds by David Goggins (2018,...
$8.45
Trending at $11.99

Shop by category

An Elementary Course of Mathematics by Woolwich Royal Military Academy (2012, Trade Paperback)

About this product

Product Information

Product Identifiers

Product Key Features

Dimensions

Best Selling in Books

The Lost Book of Herbal Remedies by Claude Davis (2018, Paperback)

Outlive Gifford Bil (2023,Paperback)

The Women : A Novel by Kristin Hannah (2024, Hardcover)

Ugly's Electrical References, 2023 Edition by Charles R. Miller (2023, Spiral)

For Love of Country : Leave the Democrat Party Behind by Tulsi Gabbard (2024, Hardcover)

The Empyrean Ser.: Iron Flame by Rebecca Yarros (2023, Hardcover)

A Marketplace Book Ser.: The Candlestick Course by Steve Nison (2003, Trade Paperback)

Save on Books

For Love of Country: Leave the Democrat Party Behind HARDCOVER 2024 by Tulsi ...

A Marketplace Book Ser.: The Candlestick Course by Steve Nison USA STOCK

New Tom Selleck You Never Know: A Memoir Signed Autographed Hardcover Book

Iron Flame by Rebecca Yarros (First Edition 2023)

Harry Potter Paperback Box Set [Books 1-7]

Can't Hurt Me : Master Your Mind and Defy the Odds by David Goggins (2018,...

You may also like

Mathematics Paperback Textbook

Mathematics Paperback Textbooks

Paperback Language Course

Mathematics Paperback Textbooks in English

Mathematics Nonfiction Paperbacks Books in English

Paperback Language Course in English