Question

1. cos(П/6-2x)=-1

2. tg(П/4-x/2)=-1

3. 2sin(П/3-x/4)=sqrt3

4. 2cos(П/4-3x)=sqrt2

Answer 1

1.cos(x)=-1

x=+-arccos+2ПN

2.tg(x)=-1

x=arctg+ПN

3.2sin(x)=sqrt3

x=(-1)arcsin(sqrt3/2)+ПN