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  • What vector must be added to the sum of two vectors 2i^-j^+3k^ and 3i^-2j^-2k^.so that the resultant is a unit vector along z-axis​

What vector must be added to the sum of two vectors 2i^-j^+3k^ and 3i^-2j^-2k^.so that the resultant is a unit vector along z-axis​

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(2 i - j + 3 k) + (3 i - 2 j - 2 k) = (3 + 2) i - (-1 -2) j + (3 - 2) k = 5 i - 3 j + k

So adding  -5 i + 3 j     gives a unit  vector along the z-axis

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avinash.dongre

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