208 Answered Questions for the topic Vectors

Vectors Math Calculus

05/07/20

#### Vectors Problem - Find a unit vector perpendicular to a=(0,-2,1) and b=(8,-3,-1). Also Find the projection of vector a onto vector b. Please include steps.

There are small arrows pointing right on top of a and b (format won't let me add)
Vectors Math Calculus

05/07/20

#### Vectors Problem - Suppose u has magnitude 5, and v has magnitude 8, and the angle between the two vectors is 105 degrees. Find u • v. Please include steps.

there are small arrows pointing right on top of u and v (format won't let me add)
Vectors Math Calculus

05/07/20

#### Vectors Problem - Find the angles between u=(7,2,-5) and v=(9,-1,-6). Please include steps.

There are small arrows on top of u and v that point right (format won't let me add)
Vectors Math Calculus

04/30/20

#### Vectors Problem - Sketch a diagram(s) that supports the fact that -(u + v) = - u-v

There are little arrows on top of u and v pointing right (the format won't let me add it)
Vectors Algebra 2 Algebra

04/27/20

Two vectors act on a point as shown below. What is the resultant vector? (Carry 3 decimal places throughout calculations and round off to 2 decimal places at end.) ^ ... more
Vectors Algebra 2 Algebra

04/24/20

Two vectors act on a point a shown below. What is the resultant vector? ^ | \ 7 | \ | 30° \ |————————— | | 3 V ... more
Vectors Math Geometry

04/20/20

#### Use a sketch graph and the formula for perpendicularity criterion to find the equation of the line perpendicular to the original line passing through (3, 11) and (5, 19).

Vectors Algebra 2 Algebra

04/17/20

Add 3∠25° - 5∠125° (Carry 3 decimal places throughout calculations and round off to 2 decimal places at end.)(A) 5.83∠59.04°(B) 6.26∠-26.85°(C) 2.03∠204.97°(D) - 2.00∠-100.00°(E) None of these For... more
Vectors Math Precalculus

04/03/20

#### (a)No one interferes with the ball. How long does it take the ball to hit the ground? (b)How far did the ball travel horizontally?

Aurora hit a baseball with an initial velocity of 70 feet per second at an angle of 30° with the horizontal. The ball hit her bat when the ball was 3 feet above the ground. Use answer from part a... more

03/12/20

#### Prove that the set {v + w, v + x, w − x} is always linearly dependent

Let v, w, x ∈ Rn be vectors. Prove that the set {v + w, v + x, w − x} is always linearly dependent (even if {v, w, x} is linearly independent).

03/12/20

#### If the set {v, w, x} is linearly independent, so is {v+w, v+x, w+x}

Let v, w, x ∈ Rn be vectors. Prove that if the set of vectors {v, w, x} is linearly independent, then so is the set {v + w, v + x, w + x}.

03/12/20

#### What is the value of t that would result in span((0, 1, −1),(1, 2, 1),(t, −1, 4))

Determine which values of t ∈ R result in span((0, 1, −1),(1, 2, 1),(t, −1, 4)) being(i) a line(ii) a planeor (iii) all of R3

03/12/20

#### Vectors and Span: True or False

(a) The inverse of a rotation matrix [R^θ] is [R^−θ].(b) If the vectors v1, v2, . . ., v3 are such that no two of these vectors are scalar multiples of each other then they must form a linearly... more

03/12/20

#### Vector Sets and Span

For each set of vectors, determine whether their span is {0}, a line, a plane, all of R2, or all of R3.A) {(0, 0), (3, 7)}B) {(1, 2),(3, 4)}C) {(0, 1, −2),(2, 1, 0),(1, 1, −1)}

03/12/20

#### Determine which of the following vector sets are and aren't in subspaces

A) The graph of the function y = 4x - 2 in R2B) The graph of the function y = cos(x) - 1 in R2C) The set of solutions (x, y, z) in the equation 3x - 4y + 2z = 0D) The set {(x, y) ∈ R2 : x ≥ 0 and y... more
Vectors Math Algebra 1

02/25/20

#### Isosceles triangle 3D Vectors.

Question " The points A and B have position vectors 10i -23j +10k and pi +14j - 22k respectively, relative to a fixed origin O, where p is a constant.Given that ΔOAB is isosceles, find three... more

02/08/20

#### Vector Valued Functions

Let r(t)= <sin(10t),cos(10t),sin(10t)cos(20t)>Find the point where r(t) intersects the xy-plane on the interval pi/10 < x < 3pi/20

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