O valor do determinante da matriz $$\left[\begin{array}{ccc}\mathrm{cossec}{x}^2& 1& \sec x^2\\ \mathrm{cotg}{x}^2& \cos x^2& \mathrm{tg}{x}^2\\ 1& \mathrm{sen}{x}^2& 1\end{array}\right]$$ com $x\ne \frac{k\pi }{2}$ e $k\in Z$ é: