find the sum of all even numbers fron 1 to 350
Answers
Answered by
1
Answer:
50//110/40/50/ right answer
Answered by
0
Answer:
30800
Step-by-step explanation:
The numbers are 2,3,4,......350
a=2
d=2
an=1=350
an=a+(n-1)2
350=2+(n-1)2
n=17
s175=175÷2(2+350)
=n÷2(a+1)
=175÷2×352
=30800
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