137 Answered Questions for the topic vector

10/27/14

Find an equation of the plane
Find an equation of the plane through the point (-5, -1, 1) and perpendicular to the vector (-1, 1, 5). Do this problem in the standard way
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Vector

10/26/14

Vector algebra
If DEF are midpoints of triangle ABC PROVE OA+ OB+ OC =OD +OE +OF
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Vector Linear Product Dot

10/19/14

Find the dot product of x and y
Let x = [-4, 4,5] and y=[0,0,-3] Find the dot product of x and y x.y=?
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10/19/14

Find the vector w=2u-3v and its additive inverse.
Let u=(1,-1,0) and v=(1,-2,-3). Find the vector w=2u-3v and its additive inverse. w= -w=  
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10/19/14

Find the angle between the vectors
Find the angle between the vectors  [1  4 -5]   and [5 -5 4]
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05/17/14

Applications of the Dot Product (Vectors)
Determine the angle between vector PQ and the positive x-axis, given endpoints P(4,7) and Q (8,3)
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05/17/14

Applications of the Dot Product (Vectors)
Determine the interior angles of triangle ABC for A(5,1), B(4, -7), and C (-1,-8)
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05/17/14

Applications of the Dot Product (Vectors)
A force, F of 25 N is acting in the direction of a = (6,1).    a) Find a unit vector in the direction of a. b) Find the Cartesian vector representing the force, f, using your answer from part a)   more
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Vector

06/07/13

Find the unit vector?
Let f(x, y, z)=yz+xz-6. At the point x=1, y=1, z=1, find the unit vector that points in the direction for which f is increasing at the fastest rate.
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Vector Math

06/06/13

Compute the curl?
Let F(x, y) be the vector field ((x-y)/(x^2+y^2), (x+y)/(x^2+y^2)). Compute curl(F).
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Vector

05/18/13

Find a potential function for the vector field?
Find a potential function for the vector field f(x, y)=2x/y i+(1-x^2)/y^2 j.
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Vector

04/01/13

Find the principal unit normal vector?
Find the principal unit normal vector to the curve defined by r(t)=<t, t^2>. T(t)=1/sqrt(1+4t^2)i+2t/sqrt(1+4t^2)j I need to find T'(t) using quotient rule but don't know how. Show your steps. more
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