Class 12Mathematics3 and 4 .Determinants and MatricesExpansion of determinants, Solution of equation in the form of determinants and area of triangle and Equation of Line
Medium$\left| {\begin{array}{*{20}{c}}1&1&1\\1&{1 + x}&1\\1&1&{1 + y}\end{array}} \right| = $
- A$1$
- B$0$
- C$x$
- D$xy$
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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
View Solutionશિરોબિંદુઓ $P(k, 1)$,$Q(2, 4)$ અને $R(1, 1)$ ધરાવતા $\triangle PQR$ નું ક્ષેત્રફળ $3$ ચોરસ એકમ છે,તો $k = $ . . . . . . .
ધારો કે $A = \begin{bmatrix} 1 & \sin \theta & 1 \\ -\sin \theta & 1 & \sin \theta \\ -1 & -\sin \theta & 1 \end{bmatrix}$,જ્યાં $0 \leq \theta \leq 2 \pi$. તો
Difficult
View Solutionજો ત્રિકોણનું ક્ષેત્રફળ $35$ ચોરસ એકમ હોય અને તેના શિરોબિંદુઓ $(2, -6)$, $(5, 4)$ અને $(k, 4)$ હોય, તો $k$ ની કિંમત . . . . . . છે.
DifficultGUJCET 2026
View Solutionસમીકરણ $\left| \begin{array}{ccc} x + \alpha & \beta & \gamma \\ \gamma & x + \beta & \alpha \\ \alpha & \beta & x + \gamma \end{array} \right| = 0$ માંથી મેળવેલ $x$ ની કિંમત શું હશે?
Medium
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