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If a, b, c are in geometric progression ...

If `a, b, c` are in geometric progression then `log a^(n), log b^(n), log c^(n)` are

A

a.A.P

B

b.G.P

C

c.H.P

D

d.none of these

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A
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HIMALAYA PUBLICATION-PROGRESSIONS-QUESTION BANK
  1. a, b, c are in A . P, x is G . M between a and b, y is the G.M between...

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  2. If (a-1) is the G.M between (a-2) and (a+1) then a=

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  3. If a, b, c are in geometric progression then log a^(n), log b^(n), log...

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  4. The first term of a G.P is 3 and 6^(th) element is (3)/(32), then if P...

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  5. The first and the n^(th) elements of a G.P are respectively a and b an...

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  6. a, b, c are in A.P, b, c, d are in G.P and c, d, e are in H.P, then a,...

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

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  8. The value of n for which ( a ^(n+1) +b^(n+1))/( a^(n) + b^(n)) is the...

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  9. If (a^(n)+b^(n))/(a^(n-1)+b^(n-1)) is an G.M between a and b then the ...

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  10. If the sum of first p terms of an A.P is equal to the sum of the first...

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  11. Find the sum to n terms of the A.P., whose k^("th") term is 5k + 1.

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  12. If the sum of n terms of an A . P is 3n^(2)+5n and its m^(th) term is ...

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  13. The 12^(th) common terms between the series 3+7+11+.. And 1+6+11+.. .+...

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  14. Find the sum of all two digit numbers which when divided by 4, yields ...

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  15. The number of common elements to the two sequences 17,21,25, ...... 4...

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  16. The sum of first 10 terms of the series : (x+(1)/( x))^(2) + ( x^(2)...

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  17. The sum of the serieslebrge (1+2)+(1+2+2^(2))+(1+2+2^(2)+2^(3))+.. to ...

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  18. If x,y,z are in A.P. and tan^(-1) x , tan^(-1) y and tan^(-1) z are a...

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  19. If a, b, c respectively the p^(th), q^(th) and r^(th) elements of a G....

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  20. If f(x) is a polynomial function of second degree. IF f(1) = f(-1) and...

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