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CamillaD
@CamillaD
August 2022
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7cosx-4sin2X=0
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mr6o6p
Verified answer
7cosx-4sin2x=0
7cosx-8sinxcosx=0
cosx(7-8sinx)=0
cosx=0
x=p/2+pk; k принадлежит Z
7-8sinx=0
-8sinx=-7
8sinx=7
sinx=7/8
x=(-1)^k*arcsin(7/8)+pk; k принадлежит Z
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Answers & Comments
Verified answer
7cosx-4sin2x=07cosx-8sinxcosx=0
cosx(7-8sinx)=0
cosx=0
x=p/2+pk; k принадлежит Z
7-8sinx=0
-8sinx=-7
8sinx=7
sinx=7/8
x=(-1)^k*arcsin(7/8)+pk; k принадлежит Z