જો $\frac{\log x}{b-c} = \frac{\log y}{c-a} = \frac{\log z}{a-b}$ હોય,તો $xyz = x^a \cdot y^b \cdot z^c = x^{b+c} \cdot y^{c+a} \cdot z^{a+b} = $

  • A
    $1$
  • B
    $0$
  • C
    $2$
  • D
    આમાંથી કોઈ નહીં

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જો $y = \frac{1}{a^{1-\log _{a} x}}$,$z = \frac{1}{a^{1-\log _{a} y}}$ અને $x = a^{k}$ હોય,તો $k =$

જો $\log x : 3 = \log y : 4 = \log z : 5$ હોય,તો $zx =$

$\log _{10} \tan 40^{\circ} \cdot \log _{10} \tan 41^{\circ} \cdots \log _{10} \tan 50^{\circ} = ?$

જો $(4.2)^{x} = (0.42)^{y} = 100$ હોય,તો $\frac{1}{x} - \frac{1}{y} = $

જો $\log 3 = 0.477$ અને $(1000)^{x} = 3$ હોય,તો $x$ ની કિંમત શોધો.

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