1. Consider a "new" coordinate system Ox1273 that is obtained by a counter-clockwise rotation of n/8 radians about the x2-axis of the "old" coordinate system Ox1x2x3. If Bi; is the cosine of the angle between the coordinate axes ; and x;, that is, Bij = cos (ãi, x;), then B11 (rounded to three decimal places) is equal to: (a) 0,016 (b) 0,739 (c) 0,832 (d) 0,109 (e) 0,924
1. Consider a "new" coordinate system Ox1273 that is obtained by a counter-clockwise rotation of n/8 radians about the x2-axis of the "old" coordinate system Ox1x2x3. If Bi; is the cosine of the angle between the coordinate axes ; and x;, that is, Bij = cos (ãi, x;), then B11 (rounded to three decimal places) is equal to: (a) 0,016 (b) 0,739 (c) 0,832 (d) 0,109 (e) 0,924
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:1. Consider a "new" coordinate system Ox1273 that is obtained by a
counter-clockwise rotation of n/8 radians about the x2-axis of the "old"
coordinate system Ox1x2x3. If Bi; is the cosine of the angle between the
coordinate axes ; and x;, that is, Bij
cos (Ti, x;), then B11 (rounded to
three decimal places) is equal to:
(a) 0,016
(b) 0, 739
(c) 0,832
(d) 0,109
(е) 0,924
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