3-d

Question: If the points $A(9,\,\,8,\,-10)$,$B(3,\,\,2,\,\,-4)$and $C(5,\,\,4,\,-6)$be collinear, then the point C divides the line $AB$ in the ratio

1) 2 : 1

2) 3 : 1

3) 1 : 2

4) –1 : 2

Solution:

Explanation: No Explanation

System of co-ordinates Direction cosines and direction ratios Projection

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