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Find the sum of the products of the corr...

Find the sum of the products of the corresponding terms of the sequence 2,4,8,16,32 and 128, 32, 8, 2, `1/2`.

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MODERN PUBLICATION-SEQUENCES AND SERIES-EXERCISE
  1. If the sum of first 10 terms is 33 times the sum of first 5 terms of G...

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  2. Show that the ratio of the sum of first n terms of a G.P. to the sum o...

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  3. Find the sum of the products of the corresponding terms of the sequenc...

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  4. If S1,S2,S3 be the sum of n, 2n, 3n terms of a G.P., show that : S1(S3...

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  5. An inventor of the chess board suggested a reward of one grain of whea...

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  6. Dipesh writes letters to four of his friends. He asks each of them to ...

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  7. A machine is depreciated at the rate of 10 % yearly and the ultimate s...

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  8. Insert two numbers between 3 and 81 so that the resulting sequence is ...

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  9. Insert 4 geometric means between 6 and 192.

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  10. The A.M. between two numbers is 20 and their G.M. is 16. Find the numb...

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  11. a, b, c are in G.P. and x and y are the A.M.’s between a, b and b, c r...

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  12. a, b, c are in G.P. and x and y are the A.M.’s between a, b and b, c r...

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  13. The sum of two numbers is 6 times their geometric mean, show that numb...

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  14. The ratio of the.A.M. and G.M. of two positive numbers a and b is m : ...

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  15. If G1 is the first of n geometric means between a and b, show that : G...

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  16. If G is the geometric mean between two distinct positive numbers a and...

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  17. If A.M. and G.M pf roots of a quadratic equation are 8 and 5 respectiv...

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  18. If one geometric mean G and two arithmetic means p amd q be inserted b...

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  19. If a is the A.M. of b and c and the two geometric means are G(1) and G...

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  20. If p ,q, r are in A.P., a is G.M. between p, q and b is G.M. between q...

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