vector that should be added to the sum of 2i-5j+3k and 4i+7j-4k to give a unit vector along the x axis
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2i-5j+3k+4i+7j-4k=6i+2j-k To get unit vector along x axis 6i+2j-k-(5i+2j-k)=i Hence -5i-2j+k should be added
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Answer:5i-2j+k
Explanation:
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