Ratio in which the xy-plane divides the ...

Ratio in which the xy-plane divides the join of (1, 2, 3) and (4, 2, 1) is a. 3:1 internally b. 3:1 externally c. 1:2 internally d. 2:1 externally

A

`3:1` internally

B

`3:1` externally

C

`1:2` internally

D

`2:1` externally

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B

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