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Insert four G.M.’s between 2 and 486....

Insert four G.M.’s between 2 and 486.

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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
  1. Find the product of three geometric means between 4 and 1/4.

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  2. if (m+1)th, (n+1)th and (r+1)th term of an AP are in GP.and m, n and r...

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  3. Insert four G.M.’s between 2 and 486.

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  4. Find the sum 1^2+(1^2+2^2)+(1^2+2^2+3^2)+ up to 22nd term.

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  5. If G is the geometric mean of xa n dy then prove that 1/(G^2-x^2)+1/(G...

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  6. If the A.M. of two positive numbers aa n db(a > b) is twice their geom...

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  7. The sum of infinite number of terms in G.P. is 20 and the sum of their...

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  8. Find the sum of the series 1+2(1-x)+3(1-x)(1-2x)+....+n(1-x)(1-2x) ...

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  9. Prove that 6^(1//2)xx6^(1//4)xx6^(1//8)...oo=6.

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  10. Three numbers are in G.P. whose sum is 70. If the extremes be each mul...

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  11. If x=a+a/r+a/(r^2)+oo,y=b-b/r+b/(r^2)+oo,a n d z=c+c/(r^2)+c/(r^4)+o...

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  12. Find the sum 1+4+13+40+121+dot

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  13. If each term of an infinite G.P. is twice the sum of the terms foll...

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  14. The sum to n terms of series 1+(1+1/2+1/(2^2))+(1+1/2+1/(2^2)+1/(2^3))...

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  15. Find the sum of the following series: (sqrt(2)+1)+1(sqrt(2)-1)+..........

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  16. If the set of natural numbers is partitioned into subsets S1={1},S2={2...

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  17. If p(x)=(1+x^2+x^4++x^(2n-2))//(1+x+x^2++x^(n-1)) is a polomial in x ,...

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  18. If the sum of the squares of the first n natural numbers exceeds theri...

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  19. If f is a function satisfying f(x+y)=f(x)xxf(y) for all x ,y in N suc...

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  20. If sum(r=1)^n tr=n/8(n+1)(n+2)(n+3), then find sum(r=1)^n1/(tr)dot

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