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if log(e)(x-1) + log(e)(x) + log(e)(x+1)...

if `log_(e)(x-1) + log_(e)(x) + log_(e)(x+1)=0`, then

A

`x^(2) + e^(-1)`

B

`x^(3) -x-1=0`

C

`x^(2) +e-1=0`

D

`x^(3) -x-e=0`

Text Solution

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The correct Answer is:
B
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ARIHANT SSC-LOGARITHM -INTRODUCTORY EXERCISE- 16.1
  1. If log(x)(0.2) =-1/4, then the value of x is:

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  2. The value of x satisfying log(243) x=0.8 is:

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  3. if log(e)(x-1) + log(e)(x) + log(e)(x+1)=0, then

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  4. The value of log(3) 5 xx log(25)9 is

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  5. The value of log (14/3) + log (11/5) - log (22/15) is:

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  6. The value of [3 log (81/80) + 5 log (25/24) + 7 log (16/15)] is:

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  7. (log (a^(3)/(bc)) + log (b^(3)/(ac)) + log (c^(3)/(ab))) is equal to :

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  8. (1/(log(a)bc+1) + 1/(log(b) ac +1) + 1/(log(c)ab+1)+1) is equal to:

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  9. 1/(log(ab)abc) + 1/(log(bc) abc) + 1/(log(ca)abc) is equal to:

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  10. The value of (1/(log(5)210) + 1/(log(6) 210) + 1/(log(7)210)) is:

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  11. The value of [1/(log(a//b)x) + 1/(log(b//c)x) + 1/(log(c//a) x)] is:

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  12. If log(10)2 = 0.3010, then log(2) 10 is:

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  13. If 2^(x) 3^(2x) =100 then the value of x is (log 2 = 0.3010, log 3 = 0...

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  14. If log 2=0.3010 and 5^x=400, then the value of x is :

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  15. If log 2 = 0.3010, the number of digits in 5^(20) is:

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  16. If log(m+n) = log m + log n, then:

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  17. If log(10)a + log(10) b =c, then the value of a is:

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  18. The mantissa of log 3274 is 0.5150. The value of log(0.3274) is:

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  19. if log(10)x = 1.9675, then the value of log(10)(100x) is:

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  20. If 5^(x) = (0.5)^(y) = 1000, then the value of (1/x - 1/y) is:

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