1.

There are n points in a plane out of these points no three are in the same straight line except p points which are collinear. Let "k" be the number of straight lines and "m" be the number of triangles .Then find m−k ?(Assume n=7p=5)

Answer»

<P>`""^(m+N)C_2`
`""^(n-m)C_2`
`""^(n)C_2-"^(p)C_ 2+1`
noneof(A) ,(B ) ,(C)

ANSWER :C


Discussion

No Comment Found