Trigonometry Examples

$\sin^{2} (x) + \sin^{2} (y) + \sin^{2} (z) - 2 \sin (x) \cdot \sin (y) \cdot \sin (z) = 2$

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$\sin^{2} (x) + \sin^{2} (y) + \sin^{2} (z) - 2 \sin (x) \cdot \sin (y) \cdot \sin (z) = 2$