નિશ્ચાયક $\Delta=\left|\begin{array}{lll}3 & 2 & 3 \\ 2 & 2 & 3 \\ 3 & 2 & 3\end{array}\right|$ ની કિંમત શોધો.

  • A
    $0$
  • B
    $1$
  • C
    $2$
  • D
    $3$

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જો $\Delta = \begin{vmatrix} x+y+z^2 & x^2+y+z & x+y^2+z \\ z^2 & x^2 & y^2 \\ x+y & y+z & x+z \end{vmatrix}$,(જ્યાં $x \neq y \neq z$ અને $x, y, z \in \mathbb{R} - \{0\}$),તો $\Delta = $ . . . . . . .

જો $\omega$ એ એકમનું કાલ્પનિક ઘનમૂળ હોય,તો નિશ્ચાયક $\left| \begin{array}{ccc} 1 & \omega^3 & \omega^2 \\ \omega^3 & 1 & \omega \\ \omega^2 & \omega & 1 \end{array} \right|$ નું મૂલ્ય શું થાય?

જેના માટે $\left|\begin{array}{ccc}x & x^2 & 1+x^3 \\ 2x & 4x^2 & 1+8x^3 \\ 3x & 9x^2 & 1+27x^3\end{array}\right|=10$ થાય તેવા ભિન્ન $x \in \mathbb{R}$ ની કુલ સંખ્યા કેટલી છે?

નિશ્ચાયકનું મૂલ્ય શોધો: $\left| {\begin{array}{*{20}{c}}{{b^2} - ab}&{b - c}&{bc - ac}\\{ab - {a^2}}&{a - b}&{{b^2} - ab}\\{bc - ac}&{c - a}&{ab - {a^2}}\end{array}} \right|$

જો $\left| \begin{array}{ccc} a^2 & b^2 & c^2 \\ (a + \lambda)^2 & (b + \lambda)^2 & (c + \lambda)^2 \\ (a - \lambda)^2 & (b - \lambda)^2 & (c - \lambda)^2 \end{array} \right| = k\lambda \left| \begin{array}{ccc} a^2 & b^2 & c^2 \\ a & b & c \\ 1 & 1 & 1 \end{array} \right|, \lambda \neq 0$ હોય,તો $k$ ની કિંમત શોધો.

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