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10 questions from this quiz
A list of numbers
8
Constant difference between terms
Constant factor between terms
Sum of terms of a sequence
Sn=n2(2a+(n−1)d)S_n = \frac{n}{2}(2a + (n-1)d)Sn=2n(2a+(n−1)d)
Sn=a1−rn1−rS_n = a\frac{1-r^n}{1-r}Sn=a1−r1−rn
When ∣r∣<1|r| < 1∣r∣<1
10
Sum approaches a finite value
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