Datrys sqrt{3.7*10^-9/9*10^9}

$$\sqrt { \frac { 3.7 \times 10 ^ { - 9 } } { 9 \times 10 ^ { 9 } } }$$

Enrhifo

$$\frac{\sqrt{370}}{30000000000}\approx 6.411794687 \cdot 10^{-10}$$

Camau Ateb

Er mwyn rhannu pwerau sy’n rhannu’r un sail, tynnwch esbonydd yr enwadur o esbonydd y rhifiadur.

$$\sqrt{\frac{3.7}{9\times 10^{18}}}$$

Cyfrifo 10 i bŵer 18 a chael 1000000000000000000.

$$\sqrt{\frac{3.7}{9\times 1000000000000000000}}$$

Lluosi 9 a 1000000000000000000 i gael 9000000000000000000.

$$\sqrt{\frac{3.7}{9000000000000000000}}$$

Ehangu \frac{3.7}{9000000000000000000} drwy luosi'r rhifiadur a'r enwadur gyda 10.

$$\sqrt{\frac{37}{90000000000000000000}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{37}{90000000000000000000}} fel rhaniad ail israddau \frac{\sqrt{37}}{\sqrt{90000000000000000000}}.

$$\frac{\sqrt{37}}{\sqrt{90000000000000000000}}$$

Ffactora 90000000000000000000=3000000000^{2}\times 10. Ailysgrifennu ail isradd y lluoswm \sqrt{3000000000^{2}\times 10} fel lluoswm ail israddau \sqrt{3000000000^{2}}\sqrt{10}. Cymryd isradd 3000000000^{2}.

$$\frac{\sqrt{37}}{3000000000\sqrt{10}}$$

Mae'n rhesymoli enwadur \frac{\sqrt{37}}{3000000000\sqrt{10}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{10}.

$$\frac{\sqrt{37}\sqrt{10}}{3000000000\left(\sqrt{10}\right)^{2}}$$

Sgwâr \sqrt{10} yw 10.

$$\frac{\sqrt{37}\sqrt{10}}{3000000000\times 10}$$

I luosi \sqrt{37} a \sqrt{10}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{\sqrt{370}}{3000000000\times 10}$$

Lluosi 3000000000 a 10 i gael 30000000000.

$$\frac{\sqrt{370}}{30000000000}$$