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log3 2 , log6 2 and log12 2 are in...

`log_3 2 , log_6 2 `and `log_12 2` are in

A

A.P.

B

G.P.

C

H.P.

D

None of these

Text Solution

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The correct Answer is:
C
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PATHFINDER-PROGRESSION AND SERIES -QUESTION BANK
  1. If a1,a2,.....an are in H.P., then the expression a1a2 + a2a3 + ... + ...

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  2. If the sum of first n natural numbers is 1/5 times the sum of their sq...

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  3. log3 2 , log6 2 and log12 2 are in

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  4. If x be the AM and y,z be two GM's between two positive numbers, then ...

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  5. If In (a + c), In(c - a) , In(a - 2b + c) are in A.P., then

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  6. The sum of the numerical series 1/(sqrt3 + sqrt7) + 1/(sqrt7 + sqrt11)...

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  7. Suppose that F(n + 1) =(2F(n) + 1)/2 for n = 1,2,3,,,, and F(1) = 2. T...

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  8. The series of natural number is divided into groups 1 , 2, 3, 4,.........

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  9. sum(i = 1)^n sum(j = 1)^i sum(k = 1)^j 1 is equal to

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  10. The sides of a right angle triangle from a G.P. the tangent of the sma...

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  11. If the first & the (2n + 1)th terms of an A.P. , a G.P & an H.P. of po...

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  12. If the arithmetic mean of two positive numbers a & b (a gt b) is twice...

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  13. If Sn denotes the sum to n terms of the series (1 le n le 9) 1 + 22 + ...

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  14. If a , b , c are in H.P. , then

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  15. Let S1 , S2,,,,, be squares such that for each n ge 1 the length of a ...

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  16. Given a sequence t1 , t2 ,..... if its possible to find a function f(r...

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  17. Given a sequence t1 , t2 ,..... if its possible to find a function f(r...

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  18. Let a1, a2 , a3,...., am be the arithmetic means between -2 and 1027 a...

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  19. Let a1, a2 , a3,...., am be the arithmetic means between -2 and 1027 a...

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  20. If A, G and H are respectively arithmetic , geometric and harmonic mea...

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