Home
Class 10
MATHS
If sum of n terms in an A.P is ((5n^2)/2...

If sum of `n` terms in an A.P is `((5n^2)/2+(3n)/2)` then find its 20th term

Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSIONS

    MTG IIT JEE FOUNDATION|Exercise OLYMPIAD/HOTS CORNER |15 Videos

  • ARITHMETIC PROGRESSIONS

    MTG IIT JEE FOUNDATION|Exercise EXERCISE - SUBJECTIVE PROBLEMS ( LONG ANSWER TYPE )|5 Videos

  • AREAS RELATED TO CIRCLES

    MTG IIT JEE FOUNDATION|Exercise OLYMPIAD/HOTS CORNER|30 Videos

  • CIRCLES

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS Corner|30 Videos

Similar Questions

Explore conceptually related problems

(i) The sum of the first n terms of an AP is ((5n^(2))/(2) + (3n)/(2)) . Find the nth term and the 20th term of this AP. (ii) The sum of the first n terms of an AP is ((3n^(2))/(2) + (5n)/(2)). Find its nth term and the 25th term.

If for every n in N , sum to n terms of an A.P. is 5n^(2)+7n then is 10th term is

If the sum of n terms of an AP is n^2-2n then find its n^(th) term

(a) The sum of 'n' terms of a progression is n(n + 1). Prove that it is an A..P. Also find its 10th term. (b) The sum of 'n' terms of a progression is (3n^(2) - 5n). Prove that it is an A.P. (c) If the sum of n terms of a series is (5n^(2) + 3n) then find its first five terms.

If the sum of the first n terms of an A.P.is (1)/(2)(3n^(2)+7n), then find its nth term.Hence write its 20 th term.

If the sum of n terms of an A.P is (4n^(2)-3n)/(4) then ,n^(th) term of the A.P

If S_(n) the sum of first n terms of an AP is given by 2n^(2)+n, then find its nth term.

The sum of n terms of an A.P. is n^(2) + 3n . Find its 20th term.

The sum of n terms of an AP is 3n^2+5n ,then find its 16th term.

If the sum of first n terms of an A.P. is 3n^(2)-2n , then its 19th term is