Question 3 (6 points)
u, v and w are three coplanar vectors:
⚫ w has a magnitude of 10 and points along the positive x-axis
⚫ v has a magnitude of 3 and makes an angle of 58 degrees to the positive x-
axis
⚫ u has a magnitude of 5 and makes an angle of 119 degrees to the positive x-
axis
⚫ vector v is located in between u and w
a) Draw a diagram of the three vectors placed tail-to-tail at the origin of an x-y plane.
b) If possible, find
w × (u + v)
Support your answer mathematically or a with a written explanation.
c) If possible, find
v. (ū⋅ w)
Support your answer mathematically or a with a written explanation.
d) If possible, find
u (v × w)
Support your answer mathematically or a with a written explanation.
Note: in this question you can work with the vectors in geometric form or convert
them to algebraic vectors.
K
Find all values x = a where the function is discontinuous. For each value of x, give the limit of the function as x approaches a. Be sure to note when the
limit doesn't exist.
x-7
p(x) =
X-7
Select the correct choice below and, if necessary, fill in the answer box(es) within your choice.
(Use a comma to separate answers as needed.)
OA. f is discontinuous at the single value x =
OB. f is discontinuous at the single value x=
OC. f is discontinuous at the two values x =
OD. f is discontinuous at the two values x =
The limit is
The limit does not exist and is not co or - ∞.
The limit for the smaller value is
The limit for the larger value is
The limit for the smaller value is
The limit for the larger value does not exist and is not c∞ or -
K
x3 +216
complete the table and use the results to find lim k(x).
If k(x) =
X+6
X-6
X
-6.1
-6.01
- 6.001
- 5.999
- 5.99
-5.9
k(x)
Complete the table.
X
-6.1
-6.01
- 6.001
- 5.999
- 5.99
- 5.9
k(x)
(Round to three decimal places as needed.)
Find the limit. Select the correct choice below and, if necessary, fill in the answer box within your choice.
Chapter 5 Solutions
MyLab Math with Pearson eText -- Standalone Access Card -- for Calculus: Early Transcendentals (3rd Edition)
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