In GP the sum of second and fourth term is 30 the difference of sixth and second terms is 90 .find the eighth term of GP ,common ratio is 1
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Tn = t * r^(n - 1)
30 = t * r^(1)+t * r^(3),
90 = t * r^(5)-t * r^(1)
r = 2, t = 3
Tn = t * r^(n - 1)
T8 = 3 * 2^(7)
T8 = 384
30 = t * r^(1)+t * r^(3),
90 = t * r^(5)-t * r^(1)
r = 2, t = 3
Tn = t * r^(n - 1)
T8 = 3 * 2^(7)
T8 = 384
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