Question

media geometrica a numerelor 12(√10-1) si 3+√90

Answer 1

Răspuns

Mg=18

Explicație pas cu pas:

Mg=$\sqrt{12(\sqrt{10-1} )(3+\sqrt{90}) } =\sqrt{12(\sqrt{10}-1) (3+3\sqrt{10} }=\sqrt{36(\sqrt{10}-1)(\sqrt{10} +1 } =\sqrt{36(10-1)} =\sqrt{36*9}=6*3=18$

Answer 2

V90=3V10

Mg=V(12V10-12)(3+3V10)

Mg=V(36V10+360-36-36V10)

Mg=V324=18