Question

For the G.P., if a = 7, r = – 3, find t₆.

Answer 1

Given, a = 7, r = – 3
t_n = ar^n–1 
∴ t₆ = 7 x (– 3)^6–1
= 7x (– 3)⁵
= 7x (– 243)
= – 1701.