Find the sum of first 25th term of ap 30,26,22...
Answers
Answered by
8
Answer:
Sum of first 25 terms of this AP = -450
Step-by-step explanation:
Sum of first n terms of AP = n/2* [2a + (n-1)*(-4)]
=25/2 * [2*30 +(24)*(-4)]
=25/2*[60-96]
=25/2 * (-36)
=25 * (-18)
= -450
HOPE THIS ANSWER HELP YOU.........
PLEASE MARK THIS ANSWER AS BRAINLIEST........
Similar questions