the sum of first 15 terms of arithemetic sequence is 495and the sum of first 25 term is 1325 a) what is the common difference. b)find the first term c)find the sum of n term of sequence
Answers
Answered by
0
Answer:
This is ur answer
a) 4
b) 5
c) 2n^2+3n
Attachments:
Similar questions
English,
3 months ago
English,
3 months ago
Computer Science,
6 months ago
Math,
1 year ago
Math,
1 year ago