Question

media geometrica x= ( 2√3+1) la puterea a 2 si y=(2√3-1) la puterea a 2

Answer 1

x=(2√3+1)²

x=(2√3)²+2×2√3×1+1²

x=12+4√3+1

x=13+4√3

y=(2√3-1)²

y=(2√3)²-2×2√3×1+1²

y=12-4√3+1

y=13-4√3

mg=√x×y

mg=√(13+4√3)(13-4√3)

mg=√13²-(4√3)²

mg=√169-48

mg=√121

mg=11