Question

if a=3i+4j and b=i+2j find the vector such that it has magnitude of a and parell to b

Answer 1

hello here's your answer...
We can represent the vector a as a=3(i+2j+3k)=3ba=3(i+2j+3k)=3b

Now as 3 is a scalar, multiplying it with a vector will not change its direction. It will simply change the magnitude of the vector, the direction being the same. So the vector a is parallel to b.

Hope that was useful...
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