Réitigh (sqrt{82}-sqrt{2})*sqrt{2}

$$( \sqrt { 82 } - \sqrt { 2 } ) \cdot \sqrt { 2 }$$

Luacháil

$$2\left(\sqrt{41}-1\right)\approx 10.806248475$$

Céimeanna Réitigh

Úsáid an t-airí dáileach chun \sqrt{82}-\sqrt{2} a mhéadú faoi \sqrt{2}.

$$\sqrt{82}\sqrt{2}-\left(\sqrt{2}\right)^{2}$$

Fachtóirigh 82=2\times 41. Athscríobh fréamh cearnach an toraidh \sqrt{2\times 41} mar thoradh na bhfréamhacha cearnacha \sqrt{2}\sqrt{41}.

$$\sqrt{2}\sqrt{41}\sqrt{2}-\left(\sqrt{2}\right)^{2}$$

Méadaigh \sqrt{2} agus \sqrt{2} chun 2 a fháil.

$$2\sqrt{41}-\left(\sqrt{2}\right)^{2}$$

Is é 2 uimhir chearnach \sqrt{2}.

$$2\sqrt{41}-2$$