One of the most important and exam oriented question from Chapter name- Arithmetic Progression
Chapter number- 9
Exercise :- 9.6
This type of question has been asked in previous years exams.
In this question we have been given an arithmetic progression. And we have to find out sum of this progression upto n terms.
CBSE DHANPAT RAI publication
CBSE Mathematics Class 10th
Question 1 (vii)