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`        A and B are two points .The position vector of A is 6b-2a.A point P divides the line AB in the ratio 1:2 If a-b is the p.v. of P then the P.V. of B is given by`
7 years ago

147 Points
```										Dear palllavi
use section formula.
let position vector of B is r
so position vector of P = (1* position vector of B  + 2 * position vector of a)/(2+1)
a-b  = (r +2(6b-2a))/2
2a-2b  =r +12b -4a
r= 6a-14b
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7 years ago
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