1.

There are n straight lines in a plane, no two of which are parallel and no three pass through the same point. Theirpointsof intersection are joined. The number of fresh lines thus formed is

Answer»

`(N(n-1)(n-2)(n-3))/(8)`
`(n(n+1)(n-2)(n-3))/(8)`
`(n(n+1)(n+2)(n-3))/(8)`
`(n(n+1)(n+2)(n+3))/(8)`

ANSWER :A


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