qstn no. 11 plzzz ..its 10th qstn
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Answered by
1
Answer:
3072
Step-by-step explanation:
ar^(n-1)=192
ar^7=192
Given: r=2
a×2^7=192
a×128=192
a=192/128
So the 12th term=
ar^(12-1)=x
ar^11=x
(192/128) × 2^11=x
3072=x
Answered by
0
Answer:
3072
Step-by-step explanation:
Common ratio, r = 2.
Let a be the first term of the G.P.
Given, 8th term is 192.
∴ a₈ = 192
=> ar⁸⁻¹ = 192
=> ar⁷ = 192
=> a(2)⁷ = 192
=> a = 192/128
=> a = 3/2
Now,
12th term of G.P a₁₂ :
= ar¹²⁻¹
= (3/2) * (2)¹¹
= 3 * 2¹⁰
= 3072
Hope it helps!
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