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यदि $\Delta=\left|\begin{array}{lll}1 & a & a^2 \\ 1 & b & b^2 \\ 1 & c & c^2\end{array}\right|=K(a-b)(b-c)(c-a)$, तो $K=$

यदि $A = \begin{bmatrix} 2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2 \end{bmatrix}$ और $B = \begin{bmatrix} 1 & 2 & 3 \\ 0 & 1 & 3 \\ 0 & 0 & 2 \end{bmatrix}$ है,तो $|AB|$ का मान ज्ञात कीजिए।

यदि $abc \neq 0$ है और समीकरण निकाय $x+7ay+2az=0$,$x+6by+2bz=0$,$x+5cy+2cz=0$ का एक अशून्य हल है,तो $a, b, c$ किसमें हैं

यदि $\left| \begin{array}{ccc} x - 1 & 3 & 0 \\ 2 & x - 3 & 4 \\ 3 & 5 & 6 \end{array} \right| = 0$ है,तो $x =$

यदि $\alpha \neq a, \beta \neq b, \gamma \neq c$ और $\left|\begin{array}{lll}\alpha & b & c \\ a & \beta & c \\ a & b & \gamma\end{array}\right|=0$ है,तो $\frac{a}{\alpha-a}+\frac{b}{\beta-b}+\frac{\gamma}{\gamma-c}$ का मान ज्ञात कीजिए:

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