Question
Using properties of determinants, prove that
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Answer
Operating $R_2$ ; background:rgba(220,220,220,0.5))
$R_{2 }- 4R_1$_{ } and $R_{3 } R_{3 }-8R_1,$ we get
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Expanding along $C_2,$ we get
$– x (– 5x^2 + 4x^2) = x^3.$
$R_{2 }- 4R_1$_{ } and $R_{3 } R_{3 }-8R_1,$ we getExpanding along $C_2,$ we get
$– x (– 5x^2 + 4x^2) = x^3.$
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