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Let bar(a) = 2bar(i) +4bar(j)-5bar(k), b...

Let `bar(a) = 2bar(i) +4bar(j)-5bar(k), bar(b) = bar(i)+bar(j)+bar(k), bar(c ) = bar(j)+2bar(k)` . Find the unit vector in the opposite direction of a + b + c

Text Solution

Verified by Experts

The correct Answer is:
`(-(3bar(i)+6bar(j)-2bar(k)))/(7)`
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