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Collinearity Condition

The point 2...

Question

The point $(22, 23)$ divides the join of P $(7, 5)$ and Q externally in ratio 3:5, then find the negative of sum of coordinates of Q.

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Solution

$(\frac{35 - 3 x}{5 - 3}, \frac{25 - 3 y}{5 - 3}) = (22, 23)$
$\Rightarrow Q = (- 3, - 7)$

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Collinearity Condition

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