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COS(x)
дЦщзФьО COS(Е) рчврЮпИпуБ зчАьщЦА @x, сту@ x вптпуБАО р ЮптьпщпЕ.
мБп ДЦщзФьО АчрэуАБьэп А Excel.
COS(0.5) ЮпрщОуБАО 0.877583.
COS(1) ЮпрщОуБАО 0.540302.
COSH, SIN, SINH, TAN, TANH, RADIANS, DEGREES.