Does it make sense? Are the following expressions defined? If so, state whether the result is a scalar or a vector . Assume F is a sufficiently differentiable vector field and φ is a sufficiently differentiable scalar-valued function. a. ▿ · φ b. ▿ F c. ▿ ·▿ φ d. ▿ (▿· φ ) e. ▿(▿ × φ ) f. ▿ ·(▿· F ) g. ▿ × ▿ φ h. ▿ × (▿· F ) i. ▿ × (▿ × F )
Does it make sense? Are the following expressions defined? If so, state whether the result is a scalar or a vector . Assume F is a sufficiently differentiable vector field and φ is a sufficiently differentiable scalar-valued function. a. ▿ · φ b. ▿ F c. ▿ ·▿ φ d. ▿ (▿· φ ) e. ▿(▿ × φ ) f. ▿ ·(▿· F ) g. ▿ × ▿ φ h. ▿ × (▿· F ) i. ▿ × (▿ × F )
Does it make sense? Are the following expressions defined? If so, state whether the result is a scalar or a vector. Assume F is a sufficiently differentiable vector field and φ is a sufficiently differentiable scalar-valued function.
a. ▿ · φ
b. ▿F
c. ▿ ·▿φ
d. ▿ (▿·φ)
e. ▿(▿ × φ)
f. ▿ ·(▿·F)
g. ▿ × ▿φ
h. ▿ × (▿·F)
i. ▿ × (▿ × F)
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
Consider the following system of equations, Ax=b :
x+2y+3z - w = 2
2x4z2w = 3
-x+6y+17z7w = 0
-9x-2y+13z7w = -14
a. Find the solution to the system. Write it as a parametric equation. You can use a
computer to do the row reduction.
b. What is a geometric description of the solution? Explain how you know.
c. Write the solution in vector form?
d. What is the solution to the homogeneous system, Ax=0?
2. Find a matrix A with the following qualities
a. A is 3 x 3.
b. The matrix A is not lower triangular and is not upper triangular.
c. At least one value in each row is not a 1, 2,-1, -2, or 0
d. A is invertible.
Find the exact area inside r=2sin(2\theta ) and outside r=\sqrt(3)
Chapter 17 Solutions
Calculus: Early Transcendentals, Books a la Carte, and MyLab Math with Pearson eText -- Title-Specific Access Card Package (3rd Edition)
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