A) \[^{8}{{C}_{3}}\]
B) \[^{8}{{C}_{3}}{{-}^{5}}{{C}_{3}}\]
C) \[^{8}{{C}_{3}}{{-}^{5}}{{C}_{3}}-1\]
D) None of these
Correct Answer: C
Solution :
The required number of ways =\[^{8}{{C}_{3}}{{-}^{5}}{{C}_{3}}{{-}^{3}}{{C}_{3}}\]. {Since total points are 8, but 5 are collinear and other three are also collinear}.
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