Math 210 Summer 2023 Exam #1
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Summer 2023
Math 210
Exam #1
Show all intermediate steps for full credit. Where appropriate leave answers in radical form Good luck!
1) A vector has initial point P = (1, −3) and terminal point Q = (−2,4) (10 pts)
a) Sketch the directed line segment representing labeling all points and labelling .
b) Write in component form
c) Write as a linear combination of the standard unit vectors.
d) Find the length of .
2) Do the points P = (1,2, −3), Q = (−5,10, −5) and R = (−14,22, −8) line on the same line? Show all work/explain your reasoning. (10 pts)
3) Use the vectors = ⟨3,4, −2⟩ and = ⟨−1,4,3⟩ to find the following. (20 pts)
a) ⋅
b) The angle between and to the nearest degree.
c) The projection of onto .
d) The vector component of orthogonal to .
4) Given the two points (- 1,0,1) and (1,3,-2) (20 points)
a) Find a set of parametric equations for the line through the two points.
b) Find a set of symmetric equations for the line through the two points
c) Find the distance between the line from part a) and (-2, 4, 0)
5) Use points (1, 2, 3), (3, 2, 1) and (- 1, -2, 2) (15 pts)
a) Find the equation of the plane passing through these points.
b) Find the distance between the plane and the point (-2, 3, 0)
6) Put the equation of the elliptic cone in standard form and describe its trace in theyz-plane (15 pts)
x2 − y2 + z2 − 12z + 2x + 37 = 0
7) Convert the following (4 pts a, 6pts b)
a) from cylindrical to rectangular
b) from spherical to rectangular
Bonus: Find the area of the triangle with vertices (1, 1,1) (1,0,3) (−3,2,0) (10 pts)
2023-08-08