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Show that the position vector of the poi...

Show that the position vector of the point P, which divides the line joining the points A and B having position vectors `veca` and `vecb` internally in ratio m:n is `(mvecb+nveca)/(m+n)`

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Show that the position vector of the point P, which divides the line joining the points A and B having position vectors veca and vecb internally in the ratio m: n" is "(mvecb+nveca)/(m+n)

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