WHICH TERM OF GP 7, 21, 63 IS 1701
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Answer:
6th term.
Step-by-step explanation:
a = 7
r = 21/7 = 3
Tn = ar^n-1
1701 = 7×(3)^n-1
1701/7 = (3)^n-1
243 = (3)^n-1
(3)⁵ = (3)^n-1
5 = n - 1
5 + 1 = n
n = 6
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