Maths
Find the sum to n terms of each of the series in Exercises 1 to 7. 7. 1^2 + (1^2 + 2^2 ) + (1^2 + 2^2 + 3^2 ) + …
27
Oct
Find the sum to n terms of each of the series in Exercises 1 to 7. 7. 1^2 + (1^2 + 2^2 ) + (1^2 + 2^2 + 3^2 ) + … Find the sum to n terms of each of the series in Exercises 1 to 7. 7. 1^2 + (1^2 + 2^2 ) [...]
Find the sum to n terms of each of the series in Exercises 1 to 7. 6. 3 × 8 + 6 × 11 + 9 × 14 + …
27
Oct
Find the sum to n terms of each of the series in Exercises 1 to 7. 6. 3 × 8 + 6 × 11 + 9 × 14 + … Find the sum to n terms of each of the series in Exercises 1 to 7. 6. 3 × 8 + 6 × 11 + [...]
Find the sum to n terms of each of the series in Exercises 1 to 7. 5. 5^2 + 6^2 + 7^2 + … + 20^2
27
Oct
Find the sum to n terms of each of the series in Exercises 1 to 7. 5. 5^2 + 6^2 + 7^2 + … + 20^2 Find the sum to n terms of each of the series in Exercises 1 to 7. 5. 5^2 + 6^2 + 7^2 + ... + 20^2 October 27, 2021 [...]
Find the sum to n terms of each of the series in Exercises 1 to 7. 4. 1/1×2 + 1/2×3 + 1/3×4 + …
27
Oct
Find the sum to n terms of each of the series in Exercises 1 to 7. 4. 1/1×2 + 1/2×3 + 1/3×4 + … Find the sum to n terms of each of the series in Exercises 1 to 7. 4. 1/1x2 + 1/2x3 + 1/3x4 + ... October 27, 2021 Category: Chapter 9 - [...]
Find the sum to n terms of each of the series in Exercises 1 to 7. 3. 3 × 1^2 + 5 × 2^2 + 7 × 3^2 + …
27
Oct
Find the sum to n terms of each of the series in Exercises 1 to 7. 3. 3 × 1^2 + 5 × 2^2 + 7 × 3^2 + … Find the sum to n terms of each of the series in Exercises 1 to 7. 3. 3 × 1^2 + 5 × 2^2 + [...]
17. If the 4th, 10th and 16th terms of a G.P. are x, y and z, respectively. Prove that x, y, z are in G.P.
27
Oct
17. If the 4th, 10th and 16th terms of a G.P. are x, y and z, respectively. Prove that x, y, z are in G.P. 10th and 16th terms of a G.P. are x 17. If the 4th respectively. Prove that x y y and z. z are in G.P. October 27, 2021 Category: Chapter [...]
16. Find a G.P. for which sum of the first two terms is – 4 and the fifth term is 4 times the third term.
27
Oct
16. Find a G.P. for which sum of the first two terms is – 4 and the fifth term is 4 times the third term. 16. Find a G.P. for which sum of the first two terms is – 4 and the fifth term is 4 times the third term. October 27, 2021 Category: Chapter [...]
15. Given a G.P. with a = 729 and 7th term 64, determine S7 .
27
Oct
15. Given a G.P. with a = 729 and 7th term 64, determine S7 . 15. Given a G.P. with a = 729 and 7th term 64 determine S7 . October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,
14. The sum of first three terms of a G.P. is 16 and the sum of the next three terms is 128. Determine the first term, the common ratio and the sum to n terms of the G.P.
27
Oct
14. The sum of first three terms of a G.P. is 16 and the sum of the next three terms is 128. Determine the first term, the common ratio and the sum to n terms of the G.P. 14. The sum of first three terms of a G.P. is 16 and the sum of the [...]
4. Find the sum of all numbers between 200 and 400 which are divisible by 7.
27
Oct
4. Find the sum of all numbers between 200 and 400 which are divisible by 7. 4. Find the sum of all numbers between 200 and 400 which are divisible by 7. October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,