Answer:
Converges, 10
Step-by-step explanation:
∑ 5 / 2ⁿ⁻¹
= ∑ 5 (½)ⁿ⁻¹
This is a geometric series with a₁ = 5 and r = ½. Since |r| < 1, the series converges to:
S = a₁ / (1 − r)
S = 5 / (1 − ½)
S = 10
That's simple!!!
-12/19 = b/19
as denominators are same, you can cancel that.
b = -12
7 is the answer
