((12.3+1.68)2.05-0.348)/2.9 =(13.982.05-0.348)/2.9=(28.689-0.348)/2.9=28.341/2.9≈9.7690
Ответ: примерно 9.7690
((12.3+1.68)2.05-0.348)/2.9
=(13.982.05-0.348)/2.9
=(28.689-0.348)/2.9
=28.341/2.9
≈9.7690
Ответ: примерно 9.7690