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xSKAtenokx
@xSKAtenokx
July 2022
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1)3^(3x+4) 3^(x^2−2) = 1.
2)cos^2 x − cos x = 0
очень интересуют сами решения, спасибо
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kirichekov
Verified answer
3^(3x+4)*3^(x²-2)=1
3^(3x+4+x²-2)=1
3^(x²+3x+2)=3⁰
x²+3x+2=0
1₁=-1, x₂=-2
2. cos²x=cosx=0
cosx(cosx-1)=0
cosx=0 или cos-1=0
1. cosx=0
x₁=π/2+πn, n∈Z
2. 1-сosx=0
сosx=1
x₂=2πn, n∈Z
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Answers & Comments
Verified answer
3^(3x+4)*3^(x²-2)=13^(3x+4+x²-2)=1
3^(x²+3x+2)=3⁰
x²+3x+2=0
1₁=-1, x₂=-2
2. cos²x=cosx=0
cosx(cosx-1)=0
cosx=0 или cos-1=0
1. cosx=0
x₁=π/2+πn, n∈Z
2. 1-сosx=0
сosx=1
x₂=2πn, n∈Z