Answer:
142884, Answer,
Step-by-step explanation:
The first term of a GP is 7, the ratio is 3. What is the sum of the 7th and 10th term?
Solution: In the given GP, a = 7 and r = 3.
The sum of the 7th and the tenth terms
= T7 +T10 = ar^6 + ar^9 = ar^6[1+r^3]
= 7*3^6[1+3^3]
= 5103*28
= 142884, Answer,
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