Question

82. The 8 th term of the G.P. 2,6, 18, 54,... is
a. 2187 b. 1098
c. 3682 d. 4374
83. Which term of the G.P.5, 10,20,40,..is
1280
a. 10 b 9th
c. 8th d. None
are in G.P​

Answer 1

Answer:

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Answer 2

Answer:

82) d 83) b

Step-by-step explanation:

ar^n-1=nth term

2×3^7=4374

5×2^n-1= 1280