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89290109063
@89290109063
July 2022
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решите неравенство: sin2x*cos2x<1/4
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au456
Verified answer
Sin(4x)/2<1/4
sin(4x)<1/2
-7π/6+2πn<4x<π/6+2πn n из Z
-7π/24+πn/2<x<π/24+πn/2 n из Z
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Answers & Comments
Verified answer
Sin(4x)/2<1/4sin(4x)<1/2
-7π/6+2πn<4x<π/6+2πn n из Z
-7π/24+πn/2<x<π/24+πn/2 n из Z