यदि $x>1$ और $x^{2}+\frac{1}{x^{2}}=83$ है,तो $x^{3}-\frac{1}{x^{3}}$ का मान ज्ञात कीजिए।

  • A
    $764$
  • B
    $750$
  • C
    $756$
  • D
    $760$

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$1 + 1 + \frac{1}{4 \times 3} + \frac{1}{4 \times 3^{2}} + \frac{1}{4 \times 3^{3}}$ का मान दशमलव के चार स्थानों तक ज्ञात कीजिए।

$57 \frac{4}{7} + 29 \frac{1}{21} + ? = 90 \frac{3}{35}$

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$15 \frac{2}{3} \times 3 \frac{1}{6} + 6 \frac{1}{3} = 11 \frac{7}{18} + ?$

यदि $M = \left(\frac{3}{7}\right) \div \left(\frac{6}{5}\right) \times \left(\frac{2}{3}\right) + \left(\frac{1}{5}\right) \times \left(\frac{3}{2}\right)$ और $N = \left(\frac{2}{5}\right) \times \left(\frac{5}{6}\right) \div \left(\frac{1}{3}\right) + \left(\frac{3}{5}\right) \times \left(\frac{2}{3}\right) \div \left(\frac{3}{5}\right)$ है,तो $\frac{M}{N}$ का मान क्या है?

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यदि $a=25, b=15, c=-10$ है; तो $\frac{a^{3}+b^{3}+c^{3}-3abc}{(a-b)^{2}+(b-c)^{2}+(c-a)^{2}}$ का मान ज्ञात कीजिए।

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