# Trigonometry! #135

Geometry Level 2

If $$A$$ is an obtuse angle, then find the value of the following expression. $\frac{\sin^{3}A-\cos^{3}A}{\sin A - \cos A} + \frac{\sin A}{\sqrt{1+\tan^{2}A}} - 2\tan A \cot A$

This problem is part of the set Trigonometry.

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