Ответ:
[tex] \cos(135) = \cos(90 + 45) = 0 + \frac{ \sqrt{2} }{2} = \frac{ \sqrt{2} }{2} [/tex]
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Ответ:
[tex] \cos(135) = \cos(90 + 45) = 0 + \frac{ \sqrt{2} }{2} = \frac{ \sqrt{2} }{2} [/tex]