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([0,x,y,x+y],[y,x+y,x],[x+y,x,y])...

([0,x,y,x+y],[y,x+y,x],[x+y,x,y])

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The determinant [[x,y,x+y],[y,x+y,x],[x+y,x,y]] is divisible by

Evaluate |[x,y,x+y],[y,x+y,x],[x+y,x,y]|

Evaluate: [[x,y,x+y],[y,x+y,x],[x+y,x,y]]

Evaluate |[x, y, x+y],[ y, x+y, x],[ x+y, x, y]|

Evaluate |{:(x,y,x+y),(y,x+y,x),(x+y,x,y):}|

Prove that: {:|(x,y,x+y),(y,x+y,x),(x+y,x,y)| = -2(x^3+y^3)

Using properties of determinants, prove the following |[x,x+y,x+2y],[x+2y,x,x+y],[x+y,x+2y,x]|=9y^2(x+y)

Using properties of determinants, prove the following |[x,x+y,x+2y],[x+2y,x,x+y],[x+y,x+2y,x]|=9y^2(x+y)

Evaluate {:|( x,y , x+y),( y,x+y,x),( x+y,x,y)|:}