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10 questions from this quiz
Common ratio between terms
Divide a term by its previous term
un=arn−1u_n = ar^{n-1}un=arn−1
222
un=5n−1u_n = 5^{n-1}un=5n−1
−4-4−4
Sn=a(1−rn)1−rS_n = \frac{a(1-r^n)}{1-r}Sn=1−ra(1−rn)
ar2ar^2ar2
Divide ar4ar^4ar4 by ararar
Logarithms
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