1.

A (x_(1),y_(1),z_(1)), B(x_(2),y_(2),z_(2)) are two points. Then the lenghts of projection on

Answer»

`{:(A,B,C),(1,2,3):}`
`{:(A,B,C),(3,5,9):}`
`{:(A,B,C),(5,9,6):}`
`{:(A,B,C),(4,2,3):}`

ANSWER :A


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