Find all possible values of the determinant of
\[\begin{pmatrix} \sec^2 x & 1 & 1 \\ \cos^2 x & \cos^2 x & \csc^2 x \\ 1 & \cos^2 x & \cot^2 x \end{pmatrix},\]as $x$ ranges over all real numbers (where the determinant is defined).
Question:
Find all possible values of the determinant of
\[\begin{pmatrix} \sec^2 x & 1 & 1 \\ \cos^2 x & \cos^2 x & \csc^2 x \\ 1 & \cos^2 x & \cot^2 x \end{pmatrix},\]as $x$ ranges over all real numbers (where the determinant is defined).
Answer:
Let's think step by step.

user
(0,1)
Find all possible values of the determinant of
\[\begin{pmatrix} \sec^2 x & 1 & 1 \\ \cos^2 x & \cos^2 x & \csc^2 x \\ 1 & \cos^2 x & \cot^2 x \end{pmatrix},\]as $x$ ranges over all real numbers (where the determinant is defined).
train