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
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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
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Answers & Comments
1.cos(x)=-1
x=+-arccos+2ПN
2.tg(x)=-1
x=arctg+ПN
3.2sin(x)=sqrt3
x=(-1)arcsin(sqrt3/2)+ПN