Class 10th Maths Chapter 5 Arithmetic Progression Exercise 5.3 Question 9 full solution in easy method.
In this video, we solve NCERT Class 10 Maths Ex 5.3 Q9 step by step with clear explanation.
📘 Question: If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.
✔️ Chapter: Arithmetic Progression
✔️ Exercise: 5.3
✔️ Question No: 9
✔️ NCERT Solution
✔️ Easy Explanation for Board Exams
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