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A: Ifthereare8 pointsin a planenothreeofwhichare onthe samestraight lineexcept4 pointsarecollinearthen thenumberofstraightlinesformedbyjoiningthemis 23. R :IF therearen pointsin a planenothreeof whichare onthe samestraightlineexceptp points are collinearthen thenumberof straightlinesformedbyjoiningthemis""^(n) C_2- ""^(p) C_2 +!. |
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Answer» BothAand Raretrueand RIS thecorrectexplanationof A . |
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