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anonymous
 3 years ago
Total number of integral points lying inside the triangle formed by the lines \(xy=0\) and \(x+y=a\), where \(a\) is any positive integer.
anonymous
 3 years ago
Total number of integral points lying inside the triangle formed by the lines \(xy=0\) and \(x+y=a\), where \(a\) is any positive integer.

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0i just wanna clear my doubts for example xy=0 and x+y=3dw:1346087738940:dw one integral point inside this one ??

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Yeah, I think so but I couldn't be sure either I got it on my test today.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1346088215344:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0a=3 1 points a=4 1+2 points a=5 1+2+3 points ...

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0For a = 21, 1 + 2 + 3 + ... + 19 = 19*20/2 = 190?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I happened to get the same but wasn't sure of it.
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