यदि $\log _{10} 2 = 0.3010$ और $\log _{10} 7 = 0.8451$ है,तो $\log _{10} 2.8$ का मान ज्ञात कीजिए।

  • A
    $0.4471$
  • B
    $1.4471$
  • C
    $2.4471$
  • D
    इनमें से कोई नहीं

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$\log _{3 / 2} 3.375$ का मान ज्ञात कीजिए।

यदि $\log 2=x, \log 3=y$ और $\log 7=z$ है,तो $\log (4 \sqrt[3]{63})$ का मान ज्ञात कीजिए।

यदि $x=\log _{a} b c, y=\log _{b} c a, z=\log _{c} a b,$ है,तो

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