pls help me out with this
Attachments:
Answers
Answered by
1
Answer:
Original answer us n/2 [ 2a + (n-a) d ]
Step-by-step explanation:
Unfortunately not in option
Similar questions
Social Sciences,
18 days ago
English,
18 days ago
India Languages,
1 month ago
Social Sciences,
9 months ago
Science,
9 months ago
Biology,
9 months ago