In an Arithmetic Progression, if d= –4, n = 7,an = 4, then find a.
CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard
CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard
Last updated at Dec. 16, 2024 by Teachoo
Transcript
Question 5 (Choice - 2) In an Arithmetic Progression, if d= –4, n = 7,an = 4, then find a. Given d = –4, n = 7,an = 4 Now, an = a + (n − 1)d Putting values 4 = a + (7 − 1) (−4) 4 = a + 6 × −4 4 = a − 24 4 + 24 = a a = 28