यदि $\frac{\log x}{b - c} = \frac{\log y}{c - a} = \frac{\log z}{a - b}$ है,तो निम्नलिखित में से कौन सा सत्य है?

  • A
    $xyz = 1$
  • B
    $x^a y^b z^c = 1$
  • C
    $x^{b + c} y^{c + a} z^{a + b} = 1$
  • D
    उपरोक्त सभी

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यदि ${a^x} = {(x + y + z)^y}$,${a^y} = {(x + y + z)^z}$,और ${a^z} = {(x + y + z)^x}$ है,तो:

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