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10 questions from this quiz
Sequence is ordered list; series is sum
Tn=a+(n−1)dT_n = a + (n-1)dTn=a+(n−1)d
x=a+b2x = \frac{a + b}{2}x=2a+b
x2=abx^2 = abx2=ab
Sn=12n(a+ℓ)S_n = \frac{1}{2}n(a + \ell)Sn=21n(a+ℓ)
−1<r<1-1 < r < 1−1<r<1
S∞=a1−rS_{\infty} = \frac{a}{1 - r}S∞=1−ra
r=0.94r = 0.94r=0.94
Sn=a(1−rn)1−rS_n = \frac{a(1 - r^n)}{1 - r}Sn=1−ra(1−rn)
Neither rrr nor any term can be zero
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