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D3.7. In each of the following parts, find a numerical value for div D at the point specified: (a) D = (2xyz- y³)a, + (xz PA(2, 3, –1); (b) D = 2pz? sin? o a, + pz? sin 26 a, +2pz sin o a C/m? at PR(p = 2. 0 = 110°, z = -1): (c) D = 2r sine cos oa, +r cose cos o a, - r sino a, C/m at Pc(r = 1.5, 0 = 30..0 = 50°). 2ry)a, + x²ya-C/m at %3D Ans. -10.00; 9.06; 1.29

D3.7. In each of the following parts, find a numerical value for div D at the point specified: (a) D = (2xyz- y³)a, + (xz PA(2, 3, –1); (b) D = 2pz? sin? o a, + pz? sin 26 a, +2pz sin o a C/m? at PR(p = 2. 0 = 110°, z = -1): (c) D = 2r sine cos oa, +r cose cos o a, - r sino a, C/m at Pc(r = 1.5, 0 = 30..0 = 50°). 2ry)a, + x²ya-C/m at %3D Ans. -10.00; 9.06; 1.29

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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D3.7. In each of the following parts, find a numerical value for div D at the point specified: (a) D = (2ryz - y)a, + (x²z 2ry)ay + r²ya.C/m? at PA(2, 3, -1): (b) D = 2pz sin' o a, + pz? sin 20 a, + 2pz sin? o a C/m? at PR(p = 2. 0 = 110°, z = -1): (c) D = 2r sin e cos o a, +r cos e cos o a, - r sino a, C/m at Pc(r 1.5, 6 30. = 50°). Ans. -10.00; 9.06; 1.29
Transcribed Image Text:D3.7. In each of the following parts, find a numerical value for div D at the point specified: (a) D = (2ryz - y)a, + (x²z 2ry)ay + r²ya.C/m? at PA(2, 3, -1): (b) D = 2pz sin' o a, + pz? sin 20 a, + 2pz sin? o a C/m? at PR(p = 2. 0 = 110°, z = -1): (c) D = 2r sin e cos o a, +r cos e cos o a, - r sino a, C/m at Pc(r 1.5, 6 30. = 50°). Ans. -10.00; 9.06; 1.29
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