If a is the frist trem, d is the common on different, n is the number of trems the sum to n tems of an AP is ----------
Answers
Answered by
1
Answer:
Sn=n/2 (2a+(n-1) d) is the answer.........
Answered by
0
Answer:
Sn=n/2[a+a+(n-1)d]
Sn=n/2(a+an)
Step-by-step explanation:
Similar questions
Math,
3 months ago
English,
3 months ago
English,
3 months ago
English,
7 months ago
English,
7 months ago
Social Sciences,
11 months ago
Computer Science,
11 months ago
Math,
11 months ago