If $2x + \frac{2}{x} = 3$,then the value of $x^3 + \frac{1}{x^3} + 2$ is

  • A
    $-\frac{9}{8}$
  • B
    $-\frac{25}{8}$
  • C
    $\frac{7}{8}$
  • D
    $11$

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If a man spends $\frac{5}{6}$ part of his money and,again earns $\frac{1}{2}$ part of the remaining money,what part of his money is with him now?

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The value of $\frac{3}{1^{2} \cdot 2^{2}}+\frac{5}{2^{2} \cdot 3^{2}}+\frac{7}{3^{2} \cdot 4^{2}}+\frac{9}{4^{2} \cdot 5^{2}}+\frac{11}{5^{2} \cdot 6^{2}}+\frac{13}{6^{2} \cdot 7^{2}}+\frac{15}{7^{2} \cdot 8^{2}}+\frac{17}{8^{2} \cdot 9^{2}}+\frac{19}{9^{2} \cdot 10^{2}}$ is

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