ВЫЧИСЛИТЬ : (sin 7П/6 -5ctg 3П/2 -tg 3П/4) * tg(-2П/3)
(sin 7П/6 -5ctg 3П/2 -tg 3П/4) * tg(-2П/3)=(-1/2-5*(-1)-(-1))*=(-1+10+2)*2=11*2=22
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(sin 7П/6 -5ctg 3П/2 -tg 3П/4) * tg(-2П/3)=(-1/2-5*(-1)-(-1))*=(-1+10+2)*2=11*2=22