નિશ્ચાયકનું મૂલ્ય શોધો: $\left| \begin{array}{ccc} \sin^2 x & \cos^2 x & 1 \\ \cos^2 x & \sin^2 x & 1 \\ -10 & 12 & 2 \end{array} \right|$

  • A
    $0$
  • B
    $12\cos^2 x - 10\sin^2 x$
  • C
    $12\sin^2 x - 10\cos^2 x - 2$
  • D
    $10\sin 2x$

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Similar Questions

જો $2^{a_1}, 2^{a_2}, 2^{a_3}, \dots, 2^{a_n}$ એ $G.P.$ માં હોય,તો નિશ્ચાયક $\left| \begin{array}{ccc} a_1 & a_2 & a_3 \\ a_{n+1} & a_{n+2} & a_{n+3} \\ a_{2n+1} & a_{2n+2} & a_{2n+3} \end{array} \right|$ ની કિંમત શું થાય?

$\theta \in (0, \pi /3)$ માટે,જેની માટે $\left| \begin{array}{ccc} 1 + \cos^2 \theta & \sin^2 \theta & 4 \cos 6\theta \\ \cos^2 \theta & 1 + \sin^2 \theta & 4 \cos 6\theta \\ \cos^2 \theta & \sin^2 \theta & 1 + 4 \cos 6\theta \end{array} \right| = 0$ થાય,તે $\theta$ ની કિંમત શોધો.

જો $\omega$ એ એકમનું કાલ્પનિક ઘનમૂળ હોય, તો નિશ્ચાયક $\left|\begin{array}{ccc}1+\omega & 0 & -\omega \\ 1+\omega^{2} & \omega & -\omega^{2} \\ \omega+\omega^{2} & \omega & -\omega^{2}\end{array}\right|$ નું મૂલ્ય શું છે?

નિશ્ચાયકના ગુણધર્મોનો ઉપયોગ કરીને સાબિત કરો કે:
$\left| \begin{array}{ccc} \sin \alpha & \cos \alpha & \cos (\alpha + \delta) \\ \sin \beta & \cos \beta & \cos (\beta + \delta) \\ \sin \gamma & \cos \gamma & \cos (\gamma + \delta) \end{array} \right| = 0$

નિશ્ચાયક $\left| {\begin{array}{*{20}{c}}{{a^2} + {x^2}}&{ab}&{ca}\\{ab}&{{b^2} + {x^2}}&{bc}\\{ca}&{bc}&{{c^2} + {x^2}}\end{array}} \right|$ એ કોનો ભાજક છે?

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