Ответ:
cosx=1/2
x=60°=pi/3
sinx =\/3
x=(-1)^karcsin\/3+pin n€Z
tgx=-3
x=arctg(-3)+pin
ctgx=2
x=arcctg2+pin n€Z
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Ответ:
cosx=1/2
x=60°=pi/3
sinx =\/3
x=(-1)^karcsin\/3+pin n€Z
tgx=-3
x=arctg(-3)+pin
ctgx=2
x=arcctg2+pin n€Z