Last updated at May 29, 2018 by Teachoo

Transcript

Example 3 Find the 10th term of the AP : 2, 7, 12, . . . 2, 7, 12, ………… an = a + (n – 1)d We have to find 10th term So, n = 10 Also , a = 2 d = 7 – 2 = 5 Putting these value in formula a10 = 2 + (10 – 1) (5) = 2 + (9) (5) = 2 + 45 = 47 So, 10th term is 47.

Finding nth term

Chapter 5 Class 10 Arithmetic Progressions

Concept wise

- Checking if AP or not and finding a, d
- Finding nth term
- Finding n
- Finding AP
- Finding nth term from end
- Divisible/ multiples
- Statement questions - nth term
- Finding sum of n terms
- Finding number of terms given s
- Given nth term finding s
- Statement questions - Sum of n terms
- Determining AP and finding sum

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.