
Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 5.2
Ex 5.2, 2 (i) (MCQ)
Ex 5.2, 2 (ii) (MCQ) Important You are here
Ex 5.2, 3 (i)
Ex 5.2, 3 (ii)
Ex 5.2, 3 (iii) Important
Ex 5.2, 3 (iv)
Ex 5.2, 3 (v) Important
Ex 5.2, 4
Ex 5.2, 5 (i)
Ex 5.2, 5 (ii) Important
Ex 5.2, 6 Important
Ex 5.2, 7
Ex 5.2, 8
Ex 5.2, 9
Ex 5.2, 10
Ex 5.2, 11
Ex 5.2, 12 Important
Ex 5.2, 13 Important
Ex 5.2, 14 Important
Ex 5.2, 15
Ex 5.2, 16
Ex 5.2, 17 Important
Ex 5.2, 18
Ex 5.2, 19
Ex 5.2, 20 Important
Last updated at May 29, 2023 by Teachoo
Ex 5.2, 2 (ii) Choose the correct choice in the following and justify 11th term of the A.P. – 3, – 1/2, 2….. is A. 28 B. 22 C. − 38 D. –48 1/2 Given AP –3, (−1)/2 , 2, … We have to find 11th term i.e. n = 11 Also, a = –3 d = (−1)/2 – (–3) = (− 1)/2 + 3 = (−1 + 6)/2 = 5/2 Putting these in formula an = a + (n – 1) d a11 = –3 + (11 – 1) × 5/2 = –3 + 10 × ( 5)/2 = –3 + 5 × 5 = –3 + 25 = –22 So, the answer is (B)