Find the length and direction (when defined) of u x v. 13) u = 2i +...
Find the length and direction (when defined) of u x v and vxu. u = - 2i - 2j - 4k, v = 2i + 2j + 3k .. uxv = (Type an exact answer, using radicals as needed.)
1. 2. Find u v and the angle between vector u and v for a) u = 2i – 2j + k, v = 3i + 4k b) u = v3i – 7j, v = v3i+j – 2k c) u = 2i +j, v= i + 2j – k
3. Consider two vectors u = 2i -j +2k and v=3i+2j-k. (a) Find a vector orthogonal to a and b. _ [3 marks] (b) Show that the vector from (a) is orthogonal to a and b. [1 mark]
Find a vector that is orthogonal to u = -2i+ 5j - 3k and w = 3i+2j+k.
(1 point) Suppose u 2i +2j + 5k, v = -4i - k and w Compute the following values: -i-4j+ 2k. Jul v=| 4 1-7ul+8v 6v+w 2u W- w 1 w
2. Given the vectors u = 2i + 3j and v = -3i - 2j (a) (4 points) Plot and label each vector (b) (4 points) Find w = u + v (c) (4 points) Find the unit vector of w
© Examples: 1. Find the direction angles of for the vector v = 2i + 3j + 4k, and show that cos?a + cos?ß + cos2y = 1. 2. Find the direction angles of the vector v= 2i + 3j – k. O P1. Find the direction angle of line determined by the origin and the point P(2,-3,6) OP2. Find the direction cosines of the line directed from P1(1, -3,4) to P2(4,3,-2).
vector u= 2i-j vector v= -2i+3J-3K find the component vector u perpendicular to v
a) Find the real part u(x,y) and imaginary part v(x,y) of f(2)= (1+2i )z? + (i – 1)2 +3 b) Verify if the above function is analytic c) Using Laplace's equation verify if the real part u(x,y) is harmonic.
13 2. Find a vector i of length 3 in the direction of a = [1,2,3]. 3. Consider the vectors th=[k, 2, -11) and (a) ū and are perpendicular. [3] (8.k, 1). Find the possible values of k such that: (b) u and ū are parallel. Sand ğ vectors in Rº such that P+q1l = 2 and P-911 = 3. Find p.7.