Rozwiąż równanie
cos(2x-pi/6)=coc(x+pi/6) /cos2x-pi/6=x+pi/6 -x
x-pi/6=pi/6
x=2pi/6
x=pi/3
x=1,05
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cos(2x-pi/6)=coc(x+pi/6) /cos
2x-pi/6=x+pi/6 -x
x-pi/6=pi/6
x=2pi/6
x=pi/3
x=1,05