જો $a = \sqrt{21} - \sqrt{20}$ અને $b = \sqrt{18} - \sqrt{17}$ હોય,તો

  • A
    $a = b$
  • B
    $a + b = 0$
  • C
    $a > b$
  • D
    $a < b$

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$20^{2-3x^2} = (40\sqrt{5})^{3x^2-2}$ હોય,તો $x$ ની કિંમત શોધો.

$\frac{1}{\sqrt{11 - 2\sqrt{30}}} - \frac{3}{\sqrt{7 - 2\sqrt{10}}} - \frac{4}{\sqrt{8 + 4\sqrt{3}}} = $

જો $\frac{4 + 3\sqrt{3}}{\sqrt{7 + 4\sqrt{3}}} = a + \sqrt{b}$ હોય,તો $(a, b) = $

પદાવલિનું મૂલ્ય શોધો: $\frac{2 \cdot 3^{n+1} + 7 \cdot 3^{n-1}}{3^{n+2} - 2 \cdot (1/3)^{1-n}}$

જો $x = 3 - \sqrt{5}$ હોય,તો $\frac{\sqrt{x}}{\sqrt{2} + \sqrt{3x - 2}} = $

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