This is an arithmetic progression based question from Chapter name- Arithmetic Progression
Chapter number- 9
Exercise – 9.6
In this question we have been given that the sums of first n terms of three A.P.s are S1, S2 and S3.
Also the first term of each is 5 and their common differences are 2, 4 and 6 respectively.
Now we have to prove that S1 + S3 = 2S2
CBSE DHANPAT RAI PUBLICATIONS
Understanding CBSE Mathematics
Class :- 10th
Question no 59