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सारणिक का मान ज्ञात कीजिए: $\left| \begin{array}{ccc} 1 & a & b \\ -a & 1 & c \\ -b & -c & 1 \end{array} \right|$

यदि $\left| {\begin{array}{*{20}{c}}{{x^2} + x}&{x + 1}&{x - 2}\\ {2{x^2} + 3x - 1}&{3x}&{3x - 3}\\ {{x^2} + 2x + 3}&{2x - 1}&{2x - 1}\end{array}} \right| = Ax - 12$ है,तो $A$ का मान ज्ञात कीजिए।

यदि आव्यूह $A_{\lambda} = \begin{bmatrix} \lambda & \lambda - 1 \\ \lambda - 1 & \lambda \end{bmatrix}$,जहाँ $\lambda \in N$ है,तो $|A_1| + |A_2| + |A_3| + \dots + |A_{300}|$ का मान ज्ञात कीजिए।

यदि $2x + 3y - 5z = 7$,$x + y + z = 6$,और $3x - 4y + 2z = 1$ है,तो $x =$

आव्यूह $\begin{bmatrix} \lambda & -1 & 4 \\ -3 & 0 & 1 \\ -1 & 1 & 2 \end{bmatrix}$ व्युत्क्रमणीय है,यदि

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