Using properties of determinants prove that:

Question:

Using properties of determinants prove that:

$\left|\begin{array}{ccc}1 & 1+p & 1+p+q \\ 2 & 3+2 p & 1+3 p+2 q \\ 3 & 6+3 p & 1+6 p+3 q\end{array}\right|=1$

Solution:

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