5.1+3+6+..........+n(n+1)/2
Answers
Answered by
6
Step-by-step explanation:
OK friend but friend what we do in this question
Similar questions
Math,
3 months ago
Geography,
3 months ago
English,
3 months ago
India Languages,
6 months ago
English,
6 months ago
Computer Science,
9 months ago
Math,
9 months ago