1.

A = (1, 2, 2), B = (2, 3, 6), C = (3,4, 12). The d.c's of a line equally inclined with OA, OB and OC where O is the origin, are

Answer»

`(1)/(SQRT(2)), (-1)/(sqrt(2)), 0`
`(1)/(sqrt(2)), (1)/(sqrt(2)), 0`
`(1)/(sqrt(3)), -(1)/(sqrt(3)),(1)/(sqrt(3))`
`(1)/(sqrt(3)),-(1)/(sqrt(3)),-(1)/(sqrt(3))`

Answer :D


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