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Ishaan94

  • 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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  1. mukushla
    • 3 years ago
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    i just wanna clear my doubts for example xy=0 and x+y=3|dw:1346087738940:dw| one integral point inside this one ??

  2. Ishaan94
    • 3 years ago
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    Yeah, I think so but I couldn't be sure either I got it on my test today.

  3. mukushla
    • 3 years ago
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    |dw:1346088215344:dw|

  4. mukushla
    • 3 years ago
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    a=3 1 points a=4 1+2 points a=5 1+2+3 points ...

  5. Ishaan94
    • 3 years ago
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    For a = 21, 1 + 2 + 3 + ... + 19 = 19*20/2 = 190?

  6. Ishaan94
    • 3 years ago
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    Thanks.

  7. Ishaan94
    • 3 years ago
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    I happened to get the same but wasn't sure of it.

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