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?
1A
2D
3A
4C
5C
6B
7B
8A
9C
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To determine if the answer is correct, we need to understand the given information correctly. You mentioned that there are 3r's, -s, t, and x, and all vectors are going in the same direction.
If we assume that r, s, and t are scalar multiples of each other and all pointing in the same direction, we can express the vector x as a linear combination of r, s, and t.
The given expression of x involving r, s, and t is:
x = 3r - s + t
Since all the vectors are going in the same direction, this expression could indeed be correct. However, without additional information or specifics about the vectors r, s, t, and x, it is not possible to be completely certain. It's always important to double-check the given information and the context in which it is being used.