If 2x 5 8 x - 6 -2 7 3 -then write the value of -x-

2x amp; 5 8 amp; x = 6 amp; 2 7 amp; 3 ⇒ 2 x^ 2 40=18+14 ⇒ 2 x^ 2 =40+32 ⇒ x^ 2 =36 ⇒ x=± 6 ⇒ |x|= 6 ...

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Adjoint of a Matrix

If 2x 5 ...

Question

$I f ∣ ∣ ∣ \begin{matrix} 2 x & 5 8 & x \end{matrix} ∣ ∣ ∣ = ∣ ∣ ∣ \begin{matrix} 6 & - 2 7 & 3 \end{matrix} ∣ ∣ ∣, t h e n w r i t e t h e v a l u e o f | x | .$

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x,

∣ ∣ ∣ \begin{matrix} 2 x & 5 8 & x \end{matrix} ∣ ∣ ∣ = ∣ ∣ ∣ \begin{matrix} 6 & 5 8 & 3 \end{matrix} ∣ ∣ ∣

|\begin{matrix} 2 x & 5 \\ 8 & x \end{matrix}| = |\begin{matrix} 6 & - 2 \\ 7 & 3 \end{matrix}|

|\begin{matrix} 2 x & 5 \\ 8 & x \end{matrix}| = |\begin{matrix} 6 & - 2 \\ 7 & 3 \end{matrix}|

∣ ∣ ∣ \begin{matrix} 2 x & 5 8 & x \end{matrix} ∣ ∣ ∣ = ∣ ∣ ∣ \begin{matrix} 6 & - 2 7 & 3 \end{matrix} ∣ ∣ ∣

x .

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