begin vmatrix x - 1 7 - 2 11end vmatrix -11 Find the value of x -

The correct option is A 9x amp;1 7 amp;2 = 11 ⇒ 2 × x 7 = 11 ⇒ 2x 7 =11 ⇒ 2x = 11+7 ⇒ 2x = 18 ⇒ x= 18/2 ⇒ x= 9 ...

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Determinant

begin vmatrix...

Question

$∣ ∣ ∣ \begin{matrix} x & 1 7 & 2 \end{matrix} ∣ ∣ ∣ = 11$
Find the value of x?

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