Question

Ans:
S
5
in/a
10. If the nth term of an A.P is 4n - 7, find the sum of the first 40 terms.
Ans: 3000
11. The ratio of the sum of the first 6 terms of a G.P. to the sum of the first 3 ter
the progression.
3
Ans: 1 2
1. Which term of the arithmetic progression 13, 20, 27,... is 1112
Ans:
111 = U,
15
n
1
13. A geometric progression is defined by u =
30.
Find the sum to infinity.
1
Ans:
2
14. "The eighth term of an A.P. is 150 and the fifty-third term is – 30.
Determine the number of terms whose sum is zero.
Ans: n=90
1
15. If the n'h term of the G.P.3, 13, 1, ... is then find the number of ter
243)
Ans: 13
n​

Answer 1

Answer:

SORRY FRIEND I CAN'T UNDERSTAND YOUR QUESTION.