Triangle formation

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M F Ruhan
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Triangle formation

Unread post by M F Ruhan » Fri Apr 09, 2021 10:47 pm

s={1,2,3,...,2021}
1.In how many ways can you form a triangle by taking 3 numbers from the series?
2.How many different triangles can you form by taking 3 numbers from the series?

[NOTE: Think of each digit as length of an arm of the triangle]

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