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Сравните:
[tex] \cos( \frac{5\pi}{4} ) [/tex]
и
[tex] \cos( \frac{7\pi}{3} ) [/tex]
Сравните:
[tex] \cos( \frac{5\pi}{4} ) [/tex]
и
[tex] \cos( \frac{7\pi}{3} ) [/tex]
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Answers & Comments
Объяснение:
cos 225= -2/корень 2
cos 420=1/2
второй будет больше