જો $p{\lambda ^4} + q{\lambda ^3} + r{\lambda ^2} + s\lambda + t = \left| {\begin{array}{*{20}{c}}{{\lambda ^2} + 3\lambda }&{\lambda - 1}&{\lambda + 3}\\{\lambda + 1}&{2 - \lambda }&{\lambda - 4}\\{\lambda - 3}&{\lambda + 4}&{3\lambda }\end{array}} \right|$ હોય,તો $t$ ની કિંમત શોધો.

  • A
    $16$
  • B
    $18$
  • C
    $17$
  • D
    $19$

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નિશ્ચાયકનું મૂલ્ય શોધો: $\left| \begin{array}{ccc} 1 & a & b \\ -a & 1 & c \\ -b & -c & 1 \end{array} \right|$

જો $2\left|\begin{array}{ll}\sin ( A + B ) & \cos ( A + B ) \\ \cos ( A - B ) & \sin ( A - B )\end{array}\right|+\sqrt{3}= 0$ હોય,તો $A =$ . . . . . . .

જો $\left[\begin{array}{rrr}1 & -1 & x \\ 1 & x & 1 \\ x & -1 & 1\end{array}\right]$ નો વ્યસ્ત ન હોય, તો $x$ ની વાસ્તવિક કિંમત શોધો.

જો $\omega$ એ એકમનું કાલ્પનિક ઘનમૂળ હોય,તો $\left| \begin{array}{ccc} a & b\omega^2 & a\omega \\ b\omega & c & b\omega^2 \\ c\omega^2 & a\omega & c \end{array} \right|$ નું મૂલ્ય શું છે?

Difficult
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નીચે આપેલા બિંદુઓ $(-2, -3), (3, 2), (-1, -8)$ શિરોબિંદુઓ ધરાવતા ત્રિકોણનું ક્ષેત્રફળ શોધો.

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