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tanyak2
@tanyak2
August 2022
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Помогите пожалуйста решить))
1) 6+6sinx=0
2)4cosx+4=0
3)-9x+4=4
С решением.
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Answers & Comments
Lesben
1)6+6sinx=0, 6(1+sinx)=0, 1+sinx=0,sinx=-1, x=3π/2+2k.π, k∈Z
2)4cosx+4=0,4(cosx+1)=0,cosx+1=0,cosx=-1,x=π+2k.π=(2k+1)π,k∈Z
3)-9x+4=4, -9x=4-4,-9x=0, x=0
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Answers & Comments
2)4cosx+4=0,4(cosx+1)=0,cosx+1=0,cosx=-1,x=π+2k.π=(2k+1)π,k∈Z
3)-9x+4=4, -9x=4-4,-9x=0, x=0