Find the sum of the first 28 terms of an...

Find the sum of the first 28 terms of an A.P. whose nth term is 4n-3.

Verified by Experts

The correct Answer is:

1540

NUMBERS AND SEQUENCES
NCERT TAMIL|Exercise Exercise 2.7 |21 Videos
NUMBERS AND SEQUENCES
NCERT TAMIL|Exercise Exercise 2.8|12 Videos
NUMBERS AND SEQUENCES
NCERT TAMIL|Exercise Exercise 2.5 |21 Videos
MENSURATION
NCERT TAMIL|Exercise Unit Exercise - 7|10 Videos
PAIR OF LINEAR EQUATIONS IN TWO VARIABLES
NCERT TAMIL|Exercise OPTIONAL EXERCISE|1 Videos

Similar Questions

Explore conceptually related problems

Find the sum of the first 30 terms of an A.P. whose nth term is 3 + 2n.

Find the sum of first 51 terms of an AP whose second and third terms are 14 and 18 respectively.

Find the sum of first 10 terms of a G.P whose 3^(rd) term is 12 and the 8^(th) term is 384.

Find the sum of first 24 terms of the list of numbers whose nth term is given by a_(n)=3+2n .

Find the sum to n terms of the A.P., whose k^("th") term is 5k + 1.

If the sum of the first 14 terms of an AP is 1050 and its first term is 10, find the 20th term.

If S_n=n P+(n(n-1))/2Q ,w h e r eS_n denotes the sum of the first n terms of an A.P., then find the common difference.

Obtain the sum of 56 terms of an A.P. whose 19^(th) and 28^(th) terms are 52 and 148 respectively.

If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.

If the sum of the first ten terms of an A.P is four times the sum of its first five terms, the ratio of the first term to the common difference is: