# Trigonometry! #8

Geometry Level 3

If $$\tan(\pi \cos \theta) = \cot (\pi \sin \theta)$$ and $$0 < \theta < \frac {3 \pi }{4}$$, then $$\sin (\theta + \frac {\pi}{4}) =\ ?$$

This problem is part of the set Trigonometry.

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