$(7.5 \times 7.5 + 37.5 + 2.5 \times 2.5)$ का मान क्या है?

  • A
    $30$
  • B
    $60$
  • C
    $80$
  • D
    $100$

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यदि $a * b = 2a - 3b + ab$ है,तो $3 * 5 + 5 * 3$ का मान क्या होगा?

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$\frac{2.75 \times 2.75 \times 2.75 - 2.25 \times 2.25 \times 2.25}{2.75 \times 2.75 + 2.75 \times 2.25 + 2.25 \times 2.25}$ का मान क्या है?

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निम्नलिखित में से कौन सा सत्य है?
$I.$ $\frac{1}{\sqrt[3]{12}} > \frac{1}{\sqrt[4]{29}} > \frac{1}{\sqrt{5}}$
$II.$ $\frac{1}{\sqrt[4]{29}} > \frac{1}{\sqrt[3]{12}} > \frac{1}{\sqrt{5}}$
$III.$ $\frac{1}{\sqrt{5}} > \frac{1}{\sqrt[3]{12}} > \frac{1}{\sqrt[4]{29}}$
$IV.$ $\frac{1}{\sqrt{5}} > \frac{1}{\sqrt[4]{29}} > \frac{1}{\sqrt[3]{12}}$

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