Ответ:
sinx=√(1-0.6²)=√(1-0,36)=√0.64=0.8
sin2x=2sinx×cosx=2×0.8×0.6=0.96
sin2x+0.9=0.96+0.9=1.96
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Ответ:
sinx=√(1-0.6²)=√(1-0,36)=√0.64=0.8
sin2x=2sinx×cosx=2×0.8×0.6=0.96
sin2x+0.9=0.96+0.9=1.96