3.6 MATLAB: Cross Product 469300.2530644.qx3zqy7 LAB ACTIVITY 3.6.1: MATLAB: Cross Product MATLAB: Cross Product This tool is provided by a third party. Though your activity may be recorded, a page refresh may be needed to fill the banner. %In this activity you will find the cross product of two vectors in 3-space and apply appropriate %MATLAB commands to find the area of a parallelepiped (cross(), dot(), and abs()). %Recall that a vector is an ordered n-tuple which may be represented as a row or column vector. %Define the three vectors u=[3, 2, 1], v=[-1, 3, 0], and w=[2, 2, 5]. u = [3 2 1] v = [-1 3 0] w = [2 2 5] %Use the cross () command to find the cross product of vectors v and w. The cross product is only %defined for vectors in 3-space. ans1 = cross (V,W) %The volume of a parallelepiped determined by three vectors is the absolute value of the scalar %triple product of the three vectors. The abs() command finds the absolute value of its argument. %Find the volume of the parallelepiped defined by u, v, and w. ans2 = abs(dot (u, cross (v,w))) 0/1

5 Find the vector form fer the geverat solution to the system of equotins. メ、* X,+ ZXs - Xy - Xe= -8 3x, - 3x2 + X3 -2xq - Xg = -7 X3 + 3xy-10x5 =19 %3D

What should we do when we have (imperfect) multicollinearity? Drop some of the independent variables. Add more independent variables in order to reduce multicollinearity. Consider testing whether the highly collinear variables are jointly significant. O Ignore it no matter what.

find the components of the vector P1P2.   (a) P1(3,5) P2(2,8)