8. Find a vector perpendicular to both $22î +j+5k and 121 49 – 2j+k a)3î +79-6kb)...
Find a vector perpendicular to both 7 = 2î + +5k and w=4ỉ – 2j+k a) 3î +79-6 b) 1lî +189 – sł c) 4 -8j+ť d){+99–3 e) none of these
Vector (Cross) Product 1. Find the vector product (2j-2k) x 5k. Sketch all three vectors onto the coordinate system below Answer: 10 Find the vector product of i+4j-3k and -2i+j-5k. Prove that your answer is perpendicular to the first two vectors by using the dot product Answer: -17i+11j+9k or 17i-11j-9k, depending on the order in which you took the cross product. 2.
If vector a = +4 i(hat) - 8 j(hat)- 6 k (hat) and vector c = -4 i(hat) -2j( hat) - 3 k(hat), what will be the magnitude of vector a times vector c . (use Dot Product) Is the correct answer 18 or 28.91?
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]
Question 5 Find the unit vector perpendicular to each of the vectors 2i-j + k and 3计4f-k, where i,j, k are the mutually perpendicular unit vectors. Calculate the sine of the angle between the two vectors.
question about linear algebra 21. The following two lines := -i+j+ k + t(2i - 2j - 2k), t e R r and y2 1 = 2 -1 intersect each other. What is the equation of the line (where s E R) passing through the intersection point of these two lines and perpendicular to both of them? r -ijk s(i - j - k) (a) (b) r i2j+3k + s(i - 2j + 7k) (c) (d) rsik) (e) =j-k s(i...
Additional Problems: (HINT: It suffices to consider Just what happens (DX c A. Show by example that (a x b xc* a with i, j and k:) B. Find a vector which is perpendicular to every vector parallel to the plane z+y 0. C. Find the line which is the intersection of the planes x + y 0 and 3y-z = 0. D. Explain why the vectors in the following form describe a plane (where both t and s are...
please answer both (12(8 pts) Find parametric equations of the line through the point (2, -1,3) and perpendicular to the line with parametric equations 1-t,y 4- 2t and 3+ t and perpendicular to the line with parametric equations 3+t,y 2-t and z 3+2t. (13)(8 pts) Find the unit tangent vector (T(t) for the vector function r(t) - costi+3t j+ 2sin 2t k at the point where t 0 (12(8 pts) Find parametric equations of the line through the point (2,...
8. If ü= 8i - 15j and = -31 - 4; and w = 121 + 6j, then find the following: A. 2w - 3ü B. ||2u - 501 C. J. D. the angle between ü and v E. the direction angle of vector w F. (3x + 70). a vector in the same direction as u with magnitude of 12 a vector orthogonal to vector V with magnitude of 7 any vector that is orthogonal to the vector w...
Given the vector U=(4,3) and V=(1,-1) (a) Write U in terms of I, J (b) Find the exact magnitude of U (c) Find U+2V (d) Find the dot product, UV (e) Are U and V perpendicular? Explain in terms of the dot product