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If a,b,c are in A.P. and x,y,z in G.P., ...

If `a,b,c` are in A.P. and `x,y,z` in G.P., prove that `x^(b-c).y^(c-a).z^(a-b)=1`

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A DAS GUPTA-Progression, Related Inequalities and Series-Exercise
  1. If S1, S2,S3,S4,.....,Sp denotes the sums of infinite geometric serie...

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  2. If a,b,c are in G.P., then show that : loga, logb, log c are in A.P.

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  3. If a,b,c are in A.P. and x,y,z in G.P., prove that x^(b-c).y^(c-a).z^(...

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  4. If a, b, c are in A.P and a, b, d are in G.P, prove that a, a -b, d ...

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  5. 29. If a,b,c are in G.P. and a^(1/x)=b^(1/y)=c^(1/z) prove that x, y, ...

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  6. If a, x, b as well as c, x, d are in GP while a^2,y,b^2 as well as c^2...

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  7. If pth, qth and rth terms of an A.P. and G.JP. Both be a,b and c respe...

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  8. If pth, qth , rth and sth terms of an AP are in GP then show that (p-q...

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  9. If second third and sixth terms of an A.P. are consecutive terms o a ...

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  10. Find an AP of distinct terms whose first term is unity such that the s...

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  11. In a set of four number, the first three are in GP & the last three ar...

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  12. In a set of four numbers, the first three are in GP and the last three...

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  13. Prove that three unequal numbers cannot be in GP when each number incr...

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  14. Three numbers whose sum is 15 are in A.P. If 1,4,19 be added to them r...

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  15. The sum of three numbers in G.P. is 14. If the first to terms are each...

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  16. The sum of three numbers in G.P. is 70. If each of the two extremes be...

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  17. Three non-zero real numbers from an A.P. and the squares of these numb...

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  18. Find three numbers a, b,c between 2 & 18 such that; O their sum is 25 ...

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  19. Given four numbers, the first three of which are three successive term...

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  20. The first term of an AP is the same as that of a GP. The common differ...

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