Mathematics, 04.03.2022 20:30, rosehayden21
Task 1
the sum Sn of a finite arithmetic series of n terms is Sn=n/2(a1+an) where a1 is the first term and an is the nth term
a. the sum Sn of a finite arithmetic series of n terms is Sn=n/2(a1+an) where a1 is the first term and an is the nth term
b. explain why Sn=na1+n(n-1)/2 d makes sense by explaining how you can extract each of na1 and n(n-1)/2 d from the sum a1+(a1+d)+(a1+2d)+...+(a1+(n-1)d)
Answers: 2
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Task 1
the sum Sn of a finite arithmetic series of n terms is Sn=n/2(a1+an) where a1 is the first...
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