Datrys sqrt{5}*sqrt{7}*sqrt{3}divsqrt{8}

$$\sqrt { 5 } \times \sqrt { 7 } \times \sqrt { 3 } \div \sqrt { 8 }$$

Enrhifo

$$\frac{\sqrt{210}}{4}\approx 3.622844187$$

Camau Ateb

I luosi \sqrt{5} a \sqrt{7}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{\sqrt{35}\sqrt{3}}{\sqrt{8}}$$

I luosi \sqrt{35} a \sqrt{3}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{\sqrt{105}}{\sqrt{8}}$$

Ffactora 8=2^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 2} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{2}. Cymryd isradd 2^{2}.

$$\frac{\sqrt{105}}{2\sqrt{2}}$$

Mae'n rhesymoli enwadur \frac{\sqrt{105}}{2\sqrt{2}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{2}.

$$\frac{\sqrt{105}\sqrt{2}}{2\left(\sqrt{2}\right)^{2}}$$

Sgwâr \sqrt{2} yw 2.

$$\frac{\sqrt{105}\sqrt{2}}{2\times 2}$$

I luosi \sqrt{105} a \sqrt{2}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{\sqrt{210}}{2\times 2}$$

Lluosi 2 a 2 i gael 4.

$$\frac{\sqrt{210}}{4}$$