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Consider the points A(3,2,-4),B(5,4,-6) ...

Consider the points `A(3,2,-4),B(5,4,-6)` and `C(9,8,-10)`.
i. Find AB, BC and AC and show that A, B, C are collinear.
ii. Find the ratio in which B divides AC using distance formula.
iii. Verify the result using section formula.

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