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Find the `20^(th)` and `n^(th)` terms of the G.P. `5/2,5/4,5/8,…`

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A N EXCEL PUBLICATION-SEQUENCES AND SERIES-QUESTION BANK
  1. If x=1 +a + a^2+…. to oo, where |a| lt1 and y=1+b+b^2+… to oo , where ...

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  2. A square is drawn by joining the mid points of the sides of a square. ...

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  3. Find the 20^(th) and n^(th) terms of the G.P. 5/2,5/4,5/8,…

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  4. Find the 12^(th) term of a G.P. whose 8^(th) term is 192 and the commo...

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  5. The 5^th, 8^th and 11^th terms of a GP are p, q and s respectively. Pr...

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  6. The 4^(th) term of a G.P. is square of its second term and the first t...

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  7. Which term of the following sequences 2,2sqrt2,4…is 128?

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  8. Which term of the following sequences sqrt3,3,3sqrt3,...is 729?

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  9. Which term of the following sequences 1/3,1/9,1/27,...is1/19683?

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  10. Find the sum to 20 terms of 0.15,0.015,0.0015,..

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  11. For what value of x, the numbers -2/7,x.-7/2 are in G.P ?

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  12. Find the sum to n terms of the G.P.sqrt7,sqrt21,3sqrt7…

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  13. Find the sum to n terms of the G.P. 1,-a,a^2,-a^3,...(ane-1)

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  14. Find the sum to n terms of the G.P.x^3,x^5,x^7,…(xne+-1)

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  15. Evaluate underset(K=1)overset11sum(2+3^K)

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  16. The sum of the first three terms of a GP is (39)/(10) and their produc...

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  17. How many terms of the G.P.3,3^2,3^3,… are needed to give the sum 120?

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  18. The sum of first three terms of a G.P. is 16 and the sum of the next ...

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  19. Given.a G. P. with a=729 and 7^ (th) term 64, determine S7 ?

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  20. The sum of the first two terms of a GP Is -4 and the fifth term is 4 t...

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