The 2nd term of a gp is 27 and 7th term is 1/9. Find the first term and common ratio
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Answer:
The first term is 81.
The common ratio is .
Step-by-step explanation:
Given : The second term of a GP is 27 and 7th term is 1 by 9.
To find : The first term and common ratio ?
Solution :
The nth term of G.P is
The 2nd term of a GP is 27 i.e. ...(1)
The 7th term of a GP is i.e. ...(2)
Divide (2) by (1),
The common ratio is .
Substitute in (1),
The first term is 81.
#Learn more
The second term of a GP is 2 and the sum of infinite terms in GP is 8 find the first term
Step-by-step explanation:
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