1A
2D
3A
4C
5C
6B
7B
8A
9C
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what is an expression of x(line cross) involving r(line),s(line) and t(line).
answer: 3r(line)-s(line)+t(line)
In the drawing there are 3r's, -s, t,and x. All vectors are going in the same direction. is the answer correct?
1 answer