138
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Umm... why don't you just get a calculator? anywho it'd be 138. And yes, I did that in my head. Because I'm good at math.
Ummm.. confusing. A sum is a process of addition, but I guess 226 + -88 does equal 138 annyho'
Sum_ap = ½ × number_of_terms × (first_term + last_term) For the first 88 multiples of three: number_of_terms = 88 first_term = 1 × 3 = 3 last_term = 88 × 3 = 264 → Sum = ½ × 88 × (3 + 264) = 44 × 267 = 11748
224 and 226
88
Two positive integers cannot have a sum which is negative!
83, 3, 2