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Find the position vector of the mid point of the vector joining the points P(2, 3, 4) and Q(4, 1, -2).
cbse
class12
modelpaper
2012
sec-a
q8
math
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asked
Dec 25, 2012
by
thanvigandhi_1
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Write the position vector of the mid-point of the vector joining the points P(2,3,4) and Q(4,1,-2).
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Find the position vector of a point R which divides the line joining two points P and Q whose position vectors are \((2\overrightarrow a + \overrightarrow b)\) and \((\overrightarrow a - 3\overrightarrow b)\) externally in the ratio 1 : 2. Also, show that P is the mid point of the line segment RQ
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