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प्रश्न
For the G.P., if a = 7, r = – 3, find t6.
उत्तर
Given, a = 7, r = – 3
tn = arn–1
∴ t6 = 7 x (– 3)6–1
= 7x (– 3)5
= 7x (– 243)
= – 1701.
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