Please help me to obtain the value of the following determinant: $\displaystyle \det\begin{bmatrix}((b+c)^2 & ab & ca\\ab & (c+a)^2 & bc\\ca & bc & (a+b)^2)\end{bmatrix}$. Thanks.
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Originally Posted by kjchauhan Please help me to obtain the value of the following determinant: $\displaystyle \det\begin{bmatrix}((b+c)^2 & ab & ca\\ab & (c+a)^2 & bc\\ca & bc & (a+b)^2)\end{bmatrix}$. Thanks. Here's a good link for this. Look up the section on 3x3 matrices...it shows the method of "expansion by minors." Does that help enough? Please let us know. -Dan
EXPAND WITH MINORS AND YOU WILL GET EASILY 2abc(a+b+c)^3 as simple as such. Minoas
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