The ratio in which the line joining the points `(a , b , c)a n d\ (-a ,-c ,-b)` is divided by the xy-plane is A.) `a : b` B.) `b : c` C.) `c : a` D.) `c : b`

Explanation

Let the ratio be` k : 1.`


Since on `xy` - plane `z = 0`


`=> (-bk+c)/(k+1)=0`


`=> k=c/b`


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