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What vector must be added to the sum of two vectors and so that the resultant is a unit vector alo |
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Answer» given vectors are DENOTED by A and B Then, A+B= -2i+J+4k. If the REQUIRED vector is ai+bj+ CK Then, (a-2)i +(b+1)j +(c+4)k = k, as PER given in the question.Hence comparing the components, we get a=2, b = -1 and c = -3. Therefore the answer is 2i -j - 3k. |
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