यदि $a^2 + 4b^2 = 12ab$ है,तो $\log(a + 2b)$ का मान क्या है?

  • A
    $\frac{1}{2}[\log a + \log b - \log 2]$
  • B
    $\log \frac{a}{2} + \log \frac{b}{2} + \log 2$
  • C
    $\frac{1}{2}[\log a + \log b + 4\log 2]$
  • D
    $\frac{1}{2}[\log a - \log b + 4\log 2]$

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यदि $x = \frac{\sqrt{5} + \sqrt{2}}{\sqrt{5} - \sqrt{2}}$ और $y = \frac{\sqrt{5} - \sqrt{2}}{\sqrt{5} + \sqrt{2}}$ हो,तो $3x^2 + 4xy - 3y^2$ का मान ज्ञात कीजिए।

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यदि $x, y$ वास्तविक संख्याएँ इस प्रकार हैं कि $3^{(x/y)+1} - 3^{(x/y)-1} = 24$,तो $(x+y)/(x-y)$ का मान क्या है?

मान ज्ञात कीजिए: $\frac{{[4 + \sqrt{15}]}^{3/2} + {[4 - \sqrt{15}]}^{3/2}}{{[6 + \sqrt{35}]}^{3/2} - {[6 - \sqrt{35}]}^{3/2}}$

संख्या $1.\overline{41}$ का परिमेय रूप क्या है?

$0.4\overline{23} = ?$

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