Question

Номер 9 пожалуйста))))))

Answer 1

V(3,13 ²-3,12 ²)(8,2 ²-1,8 ²)=

V(3,13+3,12)(3,13-3,12)(8,2+1,8)(8,2-1,8)=

V6,25×0,01×10×6,4=2

Answer 2

√((3,13²-3,12²)(8,2²-1,8)²)=√((3,13-3,12)((3,13+3,12)(8,2+1,8)(8,2-1.8))=

=√((0.01*6,25*10*6,4))=√(6,25*0,1*6,4)=√(6,25*0,64)=√4=2.