Answer:
nth term of a GP series is Tn = ar^n-1
r = b/a
r = 1/2
n = 20
therefore,
t20 = 2.5(0.5^19)
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Answer:
nth term of a GP series is Tn = ar^n-1
r = b/a
r = 1/2
n = 20
therefore,
t20 = 2.5(0.5^19)