Найти значение выражения:
[tex]sin(\frac{\pi }{22})-sin(\frac{3\pi }{22})+sin(\frac{5\pi }{22})-sin(\frac{7\pi }{22})+sin(\frac{9\pi }{22})[/tex]
[tex]sin(\frac{\pi }{22})-sin(\frac{3\pi }{22})+sin(\frac{5\pi }{22})-sin(\frac{7\pi }{22})+sin(\frac{9\pi }{22})[/tex]
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на фото......................