2x + 3y = 6
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x = 0
3y = 6
y = 2
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y = 0
2x = 6
x = 3
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Ответ ( 0 ; 2 ) ; ( 3 ; 0 )
Sin(x-π/4)=-1/2
x-π/4=-π/6+2πn U x-π/4=7π/6+2πk
x=π/4-π/6+2πn U x=π/4+7π/6+2πk
x=π/12+2πn,n∈z U x=5π/6+2πk,k∈z
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