Maths
5. Find the sum of integers from 1 to 100 that are divisible by 2 or 5.
27
Oct
5. Find the sum of integers from 1 to 100 that are divisible by 2 or 5. 5. Find the sum of integers from 1 to 100 that are divisible by 2 or 5. October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,
6. Find the sum of all two digit numbers which when divided by 4, yields 1 as remainder.
27
Oct
6. Find the sum of all two digit numbers which when divided by 4, yields 1 as remainder. 6. Find the sum of all two digit numbers which when divided by 4 yields 1 as remainder. October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,
7. If f is a function satisfying f (x +y) = f(x) f(y) for all x, y ∈ N such that f(1) = 3 and n ∑ x = 1 f(x) = 120 , find the value of n.
27
Oct
7. If f is a function satisfying f (x +y) = f(x) f(y) for all x, y ∈ N such that f(1) = 3 and n ∑ x = 1 f(x) = 120 , find the value of n. 7. If f is a function satisfying f (x +y) = f(x) f(y) for all x [...]
8. The sum of some terms of G.P. is 315 whose first term and the common ratio are 5 and 2, respectively. Find the last term and the number of terms.
27
Oct
8. The sum of some terms of G.P. is 315 whose first term and the common ratio are 5 and 2, respectively. Find the last term and the number of terms. 8. The sum of some terms of G.P. is 315 whose first term and the common ratio are 5 and 2 respectively. Find the [...]
13. How many terms of G.P. 3, 3^2 , 3^3 , … are needed to give the sum 120?
27
Oct
13. How many terms of G.P. 3, 3^2 , 3^3 , … are needed to give the sum 120? … are needed to give the sum 120? 13. How many terms of G.P. 3 3^2 33 October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,
12. The sum of first three terms of a G.P. is 39/10 and their product is 1. Find the common ratio and the terms
27
Oct
12. The sum of first three terms of a G.P. is 39/10 and their product is 1. Find the common ratio and the terms 12. The sum of first three terms of a G.P. is 39/10 and their product is 1. Find the common ratio and the terms October 27, 2021 Category: Chapter 9 - [...]
16. If a(1/b + 1/c),b(1/c + 1/a),c(1/a + 1/b) are in A.P., prove that a, b, c are in A.P
27
Oct
16. If a(1/b + 1/c),b(1/c + 1/a),c(1/a + 1/b) are in A.P., prove that a, b, c are in A.P 16. If a(1/b + 1/c) B b(1/c + 1/a) c are in A.P c(1/a + 1/b) are in A.P. prove that a October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , [...]
Tags:
16. If a(1/b + 1/c) ,
B ,
b(1/c + 1/a) ,
c are in A.P ,
c(1/a + 1/b) are in A.P. ,
prove that a ,
15. The p^th , q^th and r^th terms of an A.P. are a, b, c, respectively. Show that (q – r )a + (r – p )b + (p – q )c = 0
27
Oct
15. The p^th , q^th and r^th terms of an A.P. are a, b, c, respectively. Show that (q – r )a + (r – p )b + (p – q )c = 0 15. The p^th B C q^th and r^th terms of an A.P. are a respectively. Show that (q – r )a [...]
9. The first term of a G.P. is 1. The sum of the third term and fifth term is 90. Find the common ratio of G.P.
27
Oct
9. The first term of a G.P. is 1. The sum of the third term and fifth term is 90. Find the common ratio of G.P. 9. The first term of a G.P. is 1. The sum of the third term and fifth term is 90. Find the common ratio of G.P. October 27, 2021 [...]
11. Evaluate 11 ∑ k=1 (2 + 3^k )
27
Oct
11. Evaluate 11 ∑ k=1 (2 + 3^k ) 11. Evaluate 11 ∑ k=1 (2 + 3^k ) October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,