Trigonometry! #122

Geometry Level 1

Find the value of \[\cos\theta\sin\theta-\frac{\sin\theta\cos(90^{\circ}-\theta)\cos\theta}{\sec(90^{\circ}-\theta)}-\frac{\cos\theta\sin(90^{\circ}-\theta)\sin\theta}{\csc(90^{\circ}-\theta)}\]

This problem is part of the set Trigonometry.

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