Datrys 6/sqrt{7}+8/sqrt{2}

$$\frac { 6 } { \sqrt { 7 } } + \frac { 8 } { \sqrt { 2 } }$$

Enrhifo

$$\frac{6\sqrt{7}}{7}+4\sqrt{2}\approx 7.924641088$$

Camau Ateb Byr

Mae'n rhesymoli enwadur \frac{6}{\sqrt{7}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{7}.

$$\frac{6\sqrt{7}}{\left(\sqrt{7}\right)^{2}}+\frac{8}{\sqrt{2}}$$

Sgwâr \sqrt{7} yw 7.

$$\frac{6\sqrt{7}}{7}+\frac{8}{\sqrt{2}}$$

Mae'n rhesymoli enwadur \frac{8}{\sqrt{2}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{2}.

$$\frac{6\sqrt{7}}{7}+\frac{8\sqrt{2}}{\left(\sqrt{2}\right)^{2}}$$

Sgwâr \sqrt{2} yw 2.

$$\frac{6\sqrt{7}}{7}+\frac{8\sqrt{2}}{2}$$

Rhannu 8\sqrt{2} â 2 i gael 4\sqrt{2}.

$$\frac{6\sqrt{7}}{7}+4\sqrt{2}$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluoswch 4\sqrt{2} â \frac{7}{7}.

$$\frac{6\sqrt{7}}{7}+\frac{7\times 4\sqrt{2}}{7}$$

Gan fod gan \frac{6\sqrt{7}}{7} a \frac{7\times 4\sqrt{2}}{7} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{6\sqrt{7}+7\times 4\sqrt{2}}{7}$$

Gwnewch y gwaith lluosi yn 6\sqrt{7}+7\times 4\sqrt{2}.

$$\frac{6\sqrt{7}+28\sqrt{2}}{7}$$

Ffactor

$$\frac{2 {(3 \sqrt{7} + 14 \sqrt{2})}}{7} = 7.9246410875477435$$