tg 7п/4 = tg 3pi/4 = -1
sin( - п/6) = - sin( pi/6) = - 1/2
cos 3п= cos pi = -1
tg 7п/4 -2 sin( - п/6)-cos 3п = -1 + 2*1/2 +1 = 1
ответ: 1
tg 7п/4 = tg 3pi/4 = -1
sin( - п/6) = - sin( pi/6) = - 1/2
cos 3п= cos pi = -1
tg 7п/4 -2 sin( - п/6)-cos 3п = -1 + 2*1/2 +1 = 1
ответ: 1