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olgasterling
@olgasterling
August 2022
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помогите решить уравнения,кроме 6
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vityaperevozch
Cos^2+3sinx=3
cos^2+3sinx-3=0
(1-sin^2x)+3sinx-3=0
1-sin^2x+3sinx-3=0
-sin^2x+3sinx-2=0
t=sinx
-t^2+3t-2=0 |*(-1)
t^2-3t+2=0
t1+t2=3
t1*t2=2
t1=2 не подходит
t2=1
sinx=1
x=p/2+2пк k принадлежит Z
1 votes
Thanks 0
olgasterling
Спасибо,жаль не могу нажать на кнопку дважды
vityaperevozch
C:
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Answers & Comments
cos^2+3sinx-3=0
(1-sin^2x)+3sinx-3=0
1-sin^2x+3sinx-3=0
-sin^2x+3sinx-2=0
t=sinx
-t^2+3t-2=0 |*(-1)
t^2-3t+2=0
t1+t2=3
t1*t2=2
t1=2 не подходит
t2=1
sinx=1
x=p/2+2пк k принадлежит Z