2. ВС=АВ*sin30°/sin45°=(6√2*2)/(√2/2)=6
AB=BC*sin45°/sin60°=8√3*(√2/2)/(√3/2)=8√2
АС=ВС*sinB/sin30°=7*(√2/2)/(1/2)=7√2
3. sinC=AB*sinA/BC=5*0.4/6=1/3
sinA=BC*sinB /AC=7*sinB/8=(7*3/5)/8=21/40
sinB=AB*sinC/AB=(8*4/7)/6=16/21
Объяснение:
:)
2. ВС=АВ*sin30°/sin45°=(6√2*2)/(√2/2)=6
AB=BC*sin45°/sin60°=8√3*(√2/2)/(√3/2)=8√2
АС=ВС*sinB/sin30°=7*(√2/2)/(1/2)=7√2
3. sinC=AB*sinA/BC=5*0.4/6=1/3
sinA=BC*sinB /AC=7*sinB/8=(7*3/5)/8=21/40
sinB=AB*sinC/AB=(8*4/7)/6=16/21
Объяснение:
:)