જો $y$ એક પૂર્ણાંક સંખ્યા હોય,તો $(y^{3}-y)$ હંમેશા કોનો ગુણક હોય છે?

  • A
    $5$
  • B
    $7$
  • C
    $9$
  • D
    $6$

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જો $x_{1} x_{2} x_{3} = 4(4 + x_{1} + x_{2} + x_{3})$ હોય,તો $\left[\frac{1}{(2 + x_{1})}\right] + \left[\frac{1}{(2 + x_{2})}\right] + \left[\frac{1}{(2 + x_{3})}\right]$ ની કિંમત શું છે?

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અવયવ પાડો: $4 x^{2}+12 x y+9 y^{2}-8 x-12 y$

અવયવ પાડો: $(a+b)^{2}-2(a^{2}-b^{2})+(a-b)^{2}$

જો $a = \frac{1}{a-5}$ અને $a > 0$ હોય,તો $a + \frac{1}{a}$ ની કિંમત શોધો.

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અવયવ પાડો: $16(x-y)^{2}-9(x+y)^{2}$

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