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What is the 100th triangular number?

User Frntn
by
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1 Answer

1 vote

Answer:


T_1_0_0=5050

Explanation:

A triangular number is number that can be recomposed in the form of an equilateral triangle. Each triangular number is defined by:


T_n=(n^2+n)/(2) \hspace{5} n\in N

Hence, evaluating n=100


T_1_0_0=((100)^(2)+100 )/(2) =5050

User Clarybel
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