(csc(x)-cot(x))*(sec(x)-23(x))
\((csc(x)-cot(x))*(sec(x)-23(x))\\ =\left[\frac{1}{sinx}-\frac{cosx}{sinx}\right]\;\left[ \frac{1}{cosx}-23x \right]\\ =\left[\frac{1-cosx}{sinx}\right]\;\left[ \frac{1}{cosx}-23x \right]\\ \)
It is not very simplified. Is there more to this question?