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Aidirova
@Aidirova
July 2022
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Cos(3п/2 + х) - 5cosx = 0
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kirichekov
Verified answer
Cos(3π/2+x)-5cosx=0
sinx-5cosx=0 |:cosx≠0
sinx/cosx-5*(cosx/cosx)=0
tgx-5=0
tgx=5
x=arctg5+πn, n∈Z
4 votes
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Answers & Comments
Verified answer
Cos(3π/2+x)-5cosx=0sinx-5cosx=0 |:cosx≠0
sinx/cosx-5*(cosx/cosx)=0
tgx-5=0
tgx=5
x=arctg5+πn, n∈Z