If u = 3y^2ex − xey + 5ez, v = xex + (y − z)ey, and a = 5x^3 − y + yz, evaluate:(a) u·v (b) u×v (c) ∇×v (d) ∇a (e) ∇·uBased on your answers above, evaluate the following true/false assertions:(a) The dot product of two vectors is a scalar.(b) The cross product of two vectors is a scalar.(c) The curl of a vector is a vector.(d) The gradient of a scalar is a scalar.(e) The divergence of a vector is a scalar
If u = 3y^2ex − xey + 5ez, v = xex + (y − z)ey, and a = 5x^3 − y + yz, evaluate:(a) u·v (b) u×v (c) ∇×v (d) ∇a (e) ∇·uBased on your answers above, evaluate the following true/false assertions:(a) The dot product of two vectors is a scalar.(b) The cross product of two vectors is a scalar.(c) The curl of a vector is a vector.(d) The gradient of a scalar is a scalar.(e) The divergence of a vector is a scalar
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 31E
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If u = 3y^2ex − xey + 5ez, v = xex + (y − z)ey, and a = 5x^3 − y + yz, evaluate:
(a) u·v (b) u×v (c) ∇×v (d) ∇a (e) ∇·u
Based on your answers above, evaluate the following true/false assertions:
(a) The dot product of two vectors is a scalar.
(b) The cross product of two vectors is a scalar.
(c) The curl of a vector is a vector.
(d) The gradient of a scalar is a scalar.
(e) The divergence of a vector is a scalar
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