Home
Class 11
MATHS
Find the sum of the first n terms of the...

Find the sum of the first n terms of the series whose nth term is
(i)`n(n+3)`(ii)`3n^(2)+5`
(iii)`n^(2)+2^(n)`

Text Solution

Verified by Experts

The correct Answer is:
(i)`n/3(n+1)(n+2)`(ii) `(n(n+1)(2n+1))/2+5n`
(iii) `n/6(n+1)(2n+1)(+2(2^(n)-1)`.
Promotional Banner

Topper's Solved these Questions

  • SEQUENCES AND SERIES

    MODERN PUBLICATION|Exercise ADDITIONAL QUESTIONS|3 Videos

  • SEQUENCES AND SERIES

    MODERN PUBLICATION|Exercise FILL IN THE BLANKS|10 Videos

  • SEQUENCES AND SERIES

    MODERN PUBLICATION|Exercise EXERCISE 9 (l) LATQ|6 Videos

  • RELATIONS AND FUNCTIONS

    MODERN PUBLICATION|Exercise Chapter Test|11 Videos

  • SETS

    MODERN PUBLICATION|Exercise CHAPTER TEST 1|12 Videos

Similar Questions

Explore conceptually related problems

Find the sum of first n terms of the series whose nth term is 3n^(2)+5 .

Find the sum of n terms of the series whose nth term is: n(n^2+1)

Find the sum of n terms of the series whose nth terms is (i) n(n-1)(n+1) .

Find the sum of n terms of the series whose nth term is: n^3-3^n

Find the sum of n terms of the series whose nth term is: n(n+3)

Find the sum of n terms of the series whose nth term is: n(n-1)(n+1)

Find the sum of n terms of the series whose nth terms is (ii) n^(2)+3^(n) .

Find the sum to n terms of the series whose nth term is n^2+2^n .