Nues
6 год назад
Sinx/4 = -1/2
sin(x/2-П/4) = -Корень из 3/2
ОТВЕТЫ
Laotinin
Jun 30, 2019
1
sinx/4=-1/2
x/4=(-1)^(n+1)*π/6+πn
x=(-1)^(n+1)*2π/3+4πn,n∈z
2
sin(x/2-π/4)=-√3/2
x/2-π/4=4π/3+2πn U x/2-π/4=5π/3+2πn
x/2=19π/12+2πn U x/2=23π/12+2πn
x=-19π/6+4πn U x=23π/6+4πn,n∈z
sinx/4=-1/2
x/4=(-1)^(n+1)*π/6+πn
x=(-1)^(n+1)*2π/3+4πn,n∈z
2
sin(x/2-π/4)=-√3/2
x/2-π/4=4π/3+2πn U x/2-π/4=5π/3+2πn
x/2=19π/12+2πn U x/2=23π/12+2πn
x=-19π/6+4πn U x=23π/6+4πn,n∈z
42
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