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August 2022
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упростите sin(1/2п-x)*tg (-x)/cos (1/2п+x)
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sedinalana
Verified answer
Sin(π/2-x)*tg(-x)/cos(π/2+x)=sinx*(-sinx/cosx)*(-1/sinx)=1
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Verified answer
Sin(π/2-x)*tg(-x)/cos(π/2+x)=sinx*(-sinx/cosx)*(-1/sinx)=1