One of the most important and exam oriented question from Chapter name- Arithmetic Progression
Class 10th
Chapter number- 9
Exercise :- 9.2
In this question we have been given the arithmetic series( −5, −1, 3, 7, …) and we have to find the first term and common difference

CBSE DHANPAT RAI publication
Understanding CBSE Mathematics
Question 1 (i)