Question

1) tg(2x-п/3)=-5
2) 4cos(x/4+п/6)=sqrt3

Answer 1

1) 2x-pi3=-arctg5+pi*n
x=-12*arctg5+pi6+pi2*n
2)x4+pi6=+-arccos(sqrt34)+2pi*n
x=+-4arccos(sqrt34)-2pi3+8pi*n