- #1
luigihs
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1. Write out in full and determine the sum of the finite arithmetic series
r = 9
Ʃ 5r 5,10,15,20,25,30,35,40 <-- until 9
r=1
But how do I determine the sum of the finite arithmetic series? I forget the formula :/
r = 9
Ʃ 5r 5,10,15,20,25,30,35,40 <-- until 9
r=1
But how do I determine the sum of the finite arithmetic series? I forget the formula :/