Question

Find the sum of even number from 1 to 350​

Answer 1

Answer:

sum of even numbers = n ( n+1 )

Step-by-step explanation:

Here n= 350

sum = 350 (350+1)

= 350×351= 122850

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Answer 2

Answer:

s=n/2(2a+(n-1)d)

using this formula we will get the answer 30450