The vectors a b and c are such that a+b+c=0. determine the value of a•b+a•c+b•c if |a|=1, |b|=2 and |c|=3.. here's my solution

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

Which of the following is not an identity? o a. cos2x cscx-cscx = -sinx o b. csczx+ sec2x = 1 o c. cos2x-sin2x = 1- 2 sin2x o d. sinx(cotx + tanx) = secx

Solve for x. 5(х – 10) = 30 — 15х x = 1 x = 4 х = 5 х = 8