Find D (z,y, z) where f(r, y, z) = r" cos(y")cos(z) In the direction of v = (-9,16, 13). Possible Answers: OA. 67.472 cos(y)cos(z²) – 44.98z ycos(2²)sin(y?) – 44.98r zcos(y)sin(z) O B. -272 cos(y?)cos(z²) – 32r*ycos(z²)sin(y³) – 26z² zcos(y°) sin(z²) OC. 269.887² yzsin(y²)sin(z²) OD. -1.2 cos(y²)cos(2²) – 1.42r* ycos(z)sin(y²) – 1.16z* zcos(y²)sin(z²)
Find D (z,y, z) where f(r, y, z) = r" cos(y")cos(z) In the direction of v = (-9,16, 13). Possible Answers: OA. 67.472 cos(y)cos(z²) – 44.98z ycos(2²)sin(y?) – 44.98r zcos(y)sin(z) O B. -272 cos(y?)cos(z²) – 32r*ycos(z²)sin(y³) – 26z² zcos(y°) sin(z²) OC. 269.887² yzsin(y²)sin(z²) OD. -1.2 cos(y²)cos(2²) – 1.42r* ycos(z)sin(y²) – 1.16z* zcos(y²)sin(z²)
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:Find D (r,y, z) where f(x, y, z) = r'cos(y')cos(z')
In the direction of v - (-9,16, 13).
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Possible Answers:
67.47 cos(y")cos(2²) – 44.98z*ycos(z²)sin(y²) – 44.98z" zcos(y²) sin(2)
OA.
O B.
– 272°cos(y*)cos(z²) – 32r*ycos(z²)sin(y²) – 26" zcos(y²) sin(2)
OC.
269.88z yzsin(y')sin(z²)
O D.
-1.2z cos(y')cos(z²) – 1.42a" ycos(z²)sin(y²) – 1.16z" zcos(v*) sin(z²)
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