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If log(7)12=a ,log(12)24=b, then find v...

If `log_(7)12=a` `,log_(12)24=b`, then find value of `log_(54)168` in terms of a and b.

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The correct Answer is:
`(ab+1)/(a(8-5b))`
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ARIHANT MATHS-LOGARITHM AND THEIR PROPERTIES-Exercise (Subjective Type Questions)
  1. If log(7)12=a ,log(12)24=b, then find value of log(54)168 in terms of...

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  2. If log(3)4=a,log(5)3=b, then find the value of log(3)10 in terms of a...

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  3. If (Ina)/(b-c)=(Inb)/(c-a)=(Inc)/(a-b), prove the following . abc=1

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  4. If (Ina)/(b-c)=(Inb)/(c-a)=(Inc)/(a-b), prove the following . a^a.b^b...

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  5. If (lna)/(b-c)=(lnb)/(c-a)=(lnc)/(a-b), prove the following . a^(b^2+...

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  6. If (Ina)/(b-c)=(Inb)/(c-a)=(Inc)/(a-b), prove the following . a+b+cge...

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  7. If (Ina)/(b-c)=(Inb)/(c-a)=(Inc)/(a-b), prove the following . a^a+b^b...

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  8. If (lna)/(b-c)=(lnb)/(c-a)=(lnc)/(a-b), prove the following . a^(b^2+...

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  9. Prove that log(10) 2" lies between " 1/4 and 1/3.

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  10. If log2=0.301 and log3=0.477, find the number of integers in 5^(200)

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  11. If log2=0.301 and log3=0.477, find the number of integers in 6^(20)

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  12. If log2=0.301 and log3=0.477, find the number of integers in the numb...

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  13. If log2=0.301 and log3=0.477, find the value of log(3.375).

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  14. Find the least value of log2x-logx(0.125)for xgt1 .

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  15. Find values of lamda for which 1/log3lamda+1/log4lamdagt2 .

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  16. Solve the following equations. (i) x^(1+log10x)=10x

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  17. Solve the following equation. log2(9-2^x)=3-x

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  18. Solve the equation 2x^(log(4)^(3))+3^(log(4)^(x))=27

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  19. Solve the following equation. log4log3log2x=0

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  20. Solve the following equations.x^((log10x+5)/3)=10^(5+log10x)

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