challenging problemsin geometry - posamentier,salkind-dover
challenging problemsin geometry - posamentier,salkind-dover
Ngày tải lên: 30/05/2014, 13:26
Challenging problems in geometry (dover) posamentier & salkind
... as: if a c a-b c-d b = d then -b - = -d- ? They are essential to solutions of many problems. Triangles in Proportion 7 2-1 In 6.ABC, DE II BC, FE" DC, AF = 4, and FD = 6 (Fig. 2-1 ). Find DB. Challenge ... sides of an isosceles right triangle or a 3 0-6 0-9 0 triangle. 3-1 In any .6.ABC, E is any point on altitude AD (Fig. 3-1 ). Prove that (AC)2 - (CE)2 = (AB)2...
Ngày tải lên: 15/03/2014, 15:51
Tạo các mặt phẳng chuẩn (REFERENCE GEOMETRY)
... Reference Geometry. Được dùng để tạo các mặt phẳng (Plane), các trục Axis, và hệ trục toạ độ. Để tạo thanh công cụ Reference Geometry ta vào Tools > Customize > Toolbars > Reference Geometry. ... 2.1.1 Tạo mặt phẳng (Plane). Click chọn Plane trên thanh công cụ Reference Geometry, hoặc vào Insert > Reference Geometry > Plane. Xuất hiện hộp thoại (hình 2.2)....
Ngày tải lên: 27/08/2012, 14:32
Endface Geometry and Connector Reliability in the Outside Plant
... (Control) Average -1 09.9 nm -7 1.0 nm -1 64.3 nm -1 29.8 nm -4 2.8 nm -0 .2 nm Maximum -6 1.2 nm -1 4.6 nm -1 08.1 nm -3 1.7 nm -3 4.7 nm -3 .7 nm Minimum -1 04.9 nm -1 5.7 nm -2 91.3 nm -2 3.6 nm -6 2.6 nm -4 .5 nm Table ... values. Endface Geometry and Connector Reliability in the Outside Plant Page 10 IL vs. Ferrule Rotation (Apex=25...
Ngày tải lên: 22/10/2013, 18:15
More Geometry
... G µν is given by (6.8) and T µν is the energy-momentum tensor, calculated to zeroth order in h µν . We do not include higher-order corrections to the energy-momentum tensor because the amount of energy ... pertur- bation. We define the “trace-reversed” perturbation ¯ h µν by ¯ h µν = h µν − 1 2 η µν h . (6.20) The name makes sense, since ¯ h µ µ = −h µ µ . (The Einstein tensor is simply the tr...
Ngày tải lên: 23/10/2013, 20:20
501 Challenging Logic And Reasoning Problems - 1
... These items dif- fer from Sets 1, 2, and 3 because they ask you to find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and let- ters; for these ... numbers increase or decrease, and by how much? 1. Look at this series: 2, 4, 6, 8, 10, What num- ber should come next? a. 11 b. 12 c. 13 d. 14 2. Look at this series: 58, 52, 46, 40, 34, What num...
Ngày tải lên: 02/11/2013, 16:20
501 Challenging Logic And Reasoning Problems - 2
... Set 7 (Answers begin on page 106.) The next two sets contain verbal classification ques- tions. For these questions, the important thing (as the name “verbal classification” indicates) ... closing – QUESTIONS – 14 Set 8 (Answers begin on page 123.) Here’s another set of classification questions. Remem- ber, you are looking for the word that does NOT belong in the same group as the others....
Ngày tải lên: 02/11/2013, 16:20
501 Challenging Logic And Reasoning Problems - 3
... function, part-to-whole, classification, proportion or degree, cause and effect, similarity or difference. In each of these verbal analo- gies, you will be given a set of two related words, fol- lowed ... working basic analo- gies, try these picture analogies, which will give you practice with nonverbal reasoning. Solve these picture analogies in the same way you solved the word analo- gies. F...
Ngày tải lên: 02/11/2013, 16:20