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If vec(a)= 2vec(i) + 5vec(j) + vec(k) an...

If `vec(a)= 2vec(i) + 5vec(j) + vec(k) and vec(b)=4vec(i) + mvec(j) + n vec(k)` are collinear vectors, then find the m and n

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The correct Answer is:
n=2
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