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If $A = [\begin{array}{lll} a^{2} a b a c \\ a b b^{2} b c \\ a c b c c^{2} \end{array}]$ and $B = [\begin{array}{ccc} 0 & c & - b \\ - c & 0 & a \\ b & - a & 0 \end{array}]$ then the product AB is equal to

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Correct option is A

We have AB=0−abc+abca2c+0−a2c−a2b+a2b+00−b2c+b2cabc+0−abc−ab2+ab2+00−bc2+bc2ac2+0−ac2−abc+abc+0=O

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If A=a2 ab acab b2 bcac bc c2 and B=0c−b−c0ab−a0 then the product AB is equal to

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If $A = [\begin{array}{lll} a^{2} a b a c \\ a b b^{2} b c \\ a c b c c^{2} \end{array}]$ and $B = [\begin{array}{ccc} 0 & c & - b \\ - c & 0 & a \\ b & - a & 0 \end{array}]$ then the product AB is equal to