Ответ:
sin угла=v(1-(3v11/10)^2)=v(1-99/100)=v(1/100)=1/10=0,1
S=50*1*0,1=5
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Ответ:
sin угла=v(1-(3v11/10)^2)=v(1-99/100)=v(1/100)=1/10=0,1
S=50*1*0,1=5