If A = 2i +2j - 2k and B = -2i + 2j + 2K find A + B = ?
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Answer:
A+B = 4j
Explanation:
A = 2i +2j - 2k
B = -2i + 2j + 2K
Hence,
A+B = 2i + 2j - 2k + ( - 2i + 2j + 2k)
= 4j
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