find the magnitude of vector A=3i+2j-6k and a unit vector in the direction of A
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Answer:
magnitude = 7
unit vector = 3/7 i + 2/7 j - 6/7 k
Explanation:
magnitude = sqrt(3^2 + 2^2 + 6^2) = sqrt(9+4+36)
= sqrt (49) = 7
unit vector = vector / magnitude = 3/7 i + 2/7 j - 6/7 k
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