Question

WHICH TERM OF GP 7, 21, 63 IS 1701

Answer 1

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