Datrys sqrt{(229*10^-4)^2+(905*10^-3)^2}

$$\sqrt { ( 229 \cdot 10 ^ { - 4 } ) ^ { 2 } + ( 905 \cdot 10 ^ { - 3 } ) ^ { 2 } }$$

Enrhifo

$$\frac{\sqrt{81954941}}{10000}\approx 0.905289683$$

Camau Ateb

Cyfrifo 10 i bŵer -4 a chael \frac{1}{10000}.

$$\sqrt{\left(229\times \frac{1}{10000}\right)^{2}+\left(905\times 10^{-3}\right)^{2}}$$

Lluosi 229 a \frac{1}{10000} i gael \frac{229}{10000}.

$$\sqrt{\left(\frac{229}{10000}\right)^{2}+\left(905\times 10^{-3}\right)^{2}}$$

Cyfrifo \frac{229}{10000} i bŵer 2 a chael \frac{52441}{100000000}.

$$\sqrt{\frac{52441}{100000000}+\left(905\times 10^{-3}\right)^{2}}$$

Cyfrifo 10 i bŵer -3 a chael \frac{1}{1000}.

$$\sqrt{\frac{52441}{100000000}+\left(905\times \frac{1}{1000}\right)^{2}}$$

Lluosi 905 a \frac{1}{1000} i gael \frac{181}{200}.

$$\sqrt{\frac{52441}{100000000}+\left(\frac{181}{200}\right)^{2}}$$

Cyfrifo \frac{181}{200} i bŵer 2 a chael \frac{32761}{40000}.

$$\sqrt{\frac{52441}{100000000}+\frac{32761}{40000}}$$

Adio \frac{52441}{100000000} a \frac{32761}{40000} i gael \frac{81954941}{100000000}.

$$\sqrt{\frac{81954941}{100000000}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{81954941}{100000000}} fel rhaniad ail israddau \frac{\sqrt{81954941}}{\sqrt{100000000}}.

$$\frac{\sqrt{81954941}}{\sqrt{100000000}}$$

Cyfrifo ail isradd 100000000 a chael 10000.

$$\frac{\sqrt{81954941}}{10000}$$