$\frac{1}{1 \times 2} + \frac{1}{2 \times 3} + \frac{1}{3 \times 4} + \ldots + \frac{1}{9 \times 10}$ का मान क्या है?

  • A
    $\frac{11}{10}$
  • B
    $\frac{8}{9}$
  • C
    $\frac{9}{10}$
  • D
    $\frac{25}{1089}$

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$\frac{3.6 \times 0.48 \times 2.50}{0.12 \times 0.09 \times 0.5}$ का मान ज्ञात कीजिए।

$\frac{3}{1^{2} \cdot 2^{2}}+\frac{5}{2^{2} \cdot 3^{2}}+\frac{7}{3^{2} \cdot 4^{2}}+\frac{9}{4^{2} \cdot 5^{2}}+\frac{11}{5^{2} \cdot 6^{2}}+\frac{13}{6^{2} \cdot 7^{2}}+\frac{15}{7^{2} \cdot 8^{2}}+\frac{17}{8^{2} \cdot 9^{2}}+\frac{19}{9^{2} \cdot 10^{2}}$ का मान ज्ञात कीजिए।

यदि $\sqrt{2^{n}} = 64$ है,तो $n$ का मान ज्ञात कीजिए।

यदि $\left(-\frac{1}{2}\right) \times (x - 5) + 3 = -\frac{5}{2}$ है,तो $x$ का मान क्या है?

$\left(\frac{24}{9}\right)^{2} \times \frac{399}{39} \div \frac{41}{899} = ?$

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