Răspuns:
x= 2
y=(2/5 rad7 + 5/ 2 rad7)× rad700- rad(-2)^2
y= (2rad7/5+ 5rad7/2)× 10rad7 -2
y= (4rad7/10+25rad7/10)×10rad7 - 2
y= 29rad7/10× 10rad7 - 2
y= 29rad7×rad7 - 2
y=29×7 - 2
y= 203- 2
y= 201
Mg=rad(x×y)
Rad(201×2)=
Rad402
Ma=(x+y) /2=
(2+201)/2=
203/2
Ma-Mg=
203/2- rad402=
203/2- (2rad402)/2=
(203- 2rad402) / 2
Explicație pas cu pas: