यदि $\log_{10} 2 = 0.3010$ है,तो $\log_{10}(1/2) =$

  • A
    $-0.3010$
  • B
    $0.6990$
  • C
    $1.6990$
  • D
    $-0.6990$

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यदि $\log 2 = 0.3010$ और $\log 3 = 0.4771$ है,तो $\log _{5} 512$ का मान ज्ञात कीजिए।

यदि $y = \frac{1}{a^{1-\log _{a} x}}$,$z = \frac{1}{a^{1-\log _{a} y}}$ और $x = a^{k}$ है,तो $k =$

यदि $\log x = \frac{\log y}{2} = \frac{\log z}{5}$ है,तो $x^{4} \cdot y^{3} \cdot z^{-2} = $

$\frac{3+\log _{10} 343}{2+\frac{1}{2} \log _{10} \left(\frac{49}{4}\right)+\frac{1}{3} \log _{10} \left(\frac{1}{125}\right)}=$

यदि $\log _{10} 2986 = 3.4751$ है,तो $\log _{10} 0.02986 =$

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