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The points of trisection of the segment joining the points (1, 0, 2) and (1, 3, 2) are:

A. (1,32,43)(1, \frac{3}{2}, \frac{4}{3})

B. (1, 1, 2)

C. (1, 2, 2)

D. (1,32,2)(1, \frac{3}{2}, 2)

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 3

Trisection points divide segment in ratios 1:2 and 2:1.

For ratio 1:2: (1⋅1+2⋅13,1⋅3+2⋅03,1⋅2+2⋅23)=(1,1,2)\left(\frac{1\cdot 1+2\cdot 1}{3}, \frac{1\cdot 3+2\cdot 0}{3}, \frac{1\cdot 2+2\cdot 2}{3}\right) = (1, 1, 2).

For ratio 2:1: (2⋅1+1⋅13,2⋅3+1⋅03,2⋅2+1⋅23)=(1,2,2)\left(\frac{2\cdot 1+1\cdot 1}{3}, \frac{2\cdot 3+1\cdot 0}{3}, \frac{2\cdot 2+1\cdot 2}{3}\right) = (1, 2, 2).

So B and C.

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