Ex 5.2
Ex 5.2, 2 (i) (MCQ)
Ex 5.2, 2 (ii) (MCQ) Important
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 You are here
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 April 16, 2024 by Teachoo
Ex 5.2, 6 Check whether − 150 is a term of the A.P. 11, 8, 5, 2, … Given AP 11, 8, 5, 2, …. We need to check whether –150 is a term of AP Lets assume it is nth term of AP So, an = –150 Also, a = 11, d = 8 – 11 = –3 Now, an = a + (n – 1) d Putting values –150 = 11 + (n – 1) × (–3) –150 = 11 + n (−3) – 1 × (–3) –150 = 11 – 3n + 3 –150 = 14 – 3n –150 – 14 = – 3n –164 = – 3n (−164)/(−3) = n 164/3 = n 54.33 = n n = 54.33 Since n is coming in decimal Hence, –150 is not a term of AP