Class 11 Maths Sequences and Series Exercise 8.2 Q no 21, 22, 23, 24, 25, 26 in Tamil / Kalvikan

In This Video We Have Discussed Cbse Class 11 Maths Chapter 8 Sequences and Series Exercise 8.2 Question no 21, 22, 23, 24, 25 and 26 in Tamil / Ncert 11th Maths New Syllabus / Kalvikan 21. Find four numbers forming a geometric progression in which the third term is greater than the first term by 9, and the second term is greater than the 4th by 18. 22. If the p th , q th and r th terms of a G.P. are a, b and c, respectively. Prove that a q – r br – pc P – q = 1. 23. If the first and the n th term of a G.P. are a and b, respectively, and if P is the product of n terms, prove that P2 = (ab) n . 24. Show that the ratio of the sum of first n terms of a G.P. to the sum of terms from (n + 1)th to (2n) th term is 1 n r . 25. If a, b, c and d are in G.P. show that (a 2 + b 2 + c 2 ) (b 2 + c 2 + d 2 ) = (ab + bc + cd) 2 . 26. Insert two numbers between 3 and 81 so that the resulting sequence is G.P. #navimaths #sequencesandseries #cbseclass11thmaths #cbsemathsintamil #trendingvideo