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Give a Step-By-Step Explanation of How to Evaluate the Determinant ∣5041−46709∣\left| \begin{array} { c c c } 5 & 0 & 4 \\1 & - 4 & 6 \\7 & 0 & 9\end{array} \right|

Question 181

Multiple Choice

Give a step-by-step explanation of how to evaluate the determinant. Match sequence of steps. ∣5041−46709∣\left| \begin{array} { c c c } 5 & 0 & 4 \\1 & - 4 & 6 \\7 & 0 & 9\end{array} \right|
-First step


A) ∣5041−46709∣=(0) (−1) 2+1∣1679∣+(−4) (−1) 2+2∣5479∣+(0) (−1) 2+3∣5416∣\left| \begin{array} { c c c } 5 & 0 & 4 \\1 & - 4 & 6 \\7 & 0 & 9\end{array} \right| = ( 0 ) ( - 1 ) ^ { 2 + 1 } \left| \begin{array} { l l } 1 & 6 \\7 & 9\end{array} \right| + ( - 4 ) ( - 1 ) ^ { 2 + 2 } \left| \begin{array} { l l } 5 & 4 \\7 & 9\end{array} \right| + ( 0 ) ( - 1 ) ^ { 2 + 3 } \left| \begin{array} { l l } 5 & 4 \\1 & 6\end{array} \right|
B) ∣5041−46709∣=(0) (−1) (−33) +(−4) (1) (17) +(0) (−1) (26) \left| \begin{array} { c c c } 5 & 0 & 4 \\1 & - 4 & 6 \\7 & 0 & 9\end{array} \right| = ( 0 ) ( - 1 ) ( - 33 ) + ( - 4 ) ( 1 ) ( 17 ) + ( 0 ) ( - 1 ) ( 26 )
C) ∣5041−46709∣=0−68+0=−68\left| \begin{array} { c c c } 5 & 0 & 4 \\1 & - 4 & 6 \\7 & 0 & 9\end{array} \right| = 0 - 68 + 0 = - 68

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