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Krepss
@Krepss
July 2022
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6 sin²x + sinx=2 помогите пожалуйста решить,срочно
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evaamrzt
6sin^2x+sinx-2=0
D=1-4*(-2)*6=1+48=49
sinx₁=(-1-7)/12=√2/2
sinx₂=(-1+7)/12=1/2=0.5
x₁=π/4+2πn, n ∈ Z; 3π/4+2πn, n ∈ Z
x₂=π/6+2πn, n ∈ Z; 5π/6+2πn, n ∈ Z
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Answers & Comments
D=1-4*(-2)*6=1+48=49
sinx₁=(-1-7)/12=√2/2
sinx₂=(-1+7)/12=1/2=0.5
x₁=π/4+2πn, n ∈ Z; 3π/4+2πn, n ∈ Z
x₂=π/6+2πn, n ∈ Z; 5π/6+2πn, n ∈ Z