Thursday, April 9, 2015

Precalculus, Chapter 6, 6.3, Section 6.3, Problem 38

You need to perform the addition of the vectors u and v,u = u_x*i + u_y*j, v = v_x*i + v_y*j , such that:
u + v = (u_x+v_x)i + (u_y+v_y)j
u + v = (0+3)i + (2+0)j
u + v =3i + 2j
Hence, evaluating the sum of the vectors u and v yields u + v =3i + 2j .
You need to perform the difference of the vectors u and v,u = u_x*i + u_y*j, v = v_x*i + v_y*j , such that:
u - v = (u_x-v_x)i + (u_y-v_y)j
u - v = (0-3)i + (2-0)j
u - v =-3i + 2j
Hence, evaluating the sum of the vectors u and v yields u - v =-3i + 2j.

No comments:

Post a Comment

Why is the fact that the Americans are helping the Russians important?

In the late author Tom Clancy’s first novel, The Hunt for Red October, the assistance rendered to the Russians by the United States is impor...