Question

find the sum of first n even numbers


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Answer 1

Answer:

for finding sum of first n even numbers there is a formula :-

${n}^{2} + n$

and for finding sum of first n odd numbers there is also a formula :-

${n}^{2}$

both these formulas are suitable for only sum of first n even or odd numbers.

hope it helps you ✌️✌️

Answer 2

Sum of first n Even numbers -

n (n + 1)