The third and eleventh terms of an AP are -15 and 25. Find the common difference.
Answers
Answered by
0
Answer:
In an A.P., uₙ = a + (n-1)d
the first term = a = -3
common difference = d = ?
u₁₁ = 25 (given)
a + 10d = 25
-3 + 10d = 25
10d = 28
d = 2.8
Attachments:
Similar questions