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What is the formula to calculate any given consecutive even numbers like 28 30 32 34 etc or 14 16 18 20 etc instead of adding them separately?
Wiki User
∙ 15y ago
depends what you mean by a number ! I am going to assume you are talking about the real numbers (1,2,3,4,5 etc.)
You could formulate a series equation to give you only values of x = even number say you had 28+30+32+34+36+38= x instead of going through and adding them is there a formula to take like the first and last number to get the sum of all those numbers? I don't know if this really will work with all of them, but I came up with taking the first number plus the last number multiplied by half of the numbers you're adding together.
Wiki User
∙ 15y ago
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