Datrys sqrt{2*16*10^-19*500/91*10^-31}

$$\sqrt{ \frac{ 2 \cdot 16 \times { 10 }^{ -19 } \times 500 }{ 91 \times { 10 }^{ -31 } } }$$

Enrhifo

$$\frac{40000000\sqrt{910}}{91}\approx 13259870.882635918$$

Camau Ateb

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

$$\sqrt{\frac{2\times 16\times 500\times 10^{12}}{91}}$$

Lluosi 2 a 16 i gael 32.

$$\sqrt{\frac{32\times 500\times 10^{12}}{91}}$$

Lluosi 32 a 500 i gael 16000.

$$\sqrt{\frac{16000\times 10^{12}}{91}}$$

Cyfrifo 10 i bŵer 12 a chael 1000000000000.

$$\sqrt{\frac{16000\times 1000000000000}{91}}$$

Lluosi 16000 a 1000000000000 i gael 16000000000000000.

$$\sqrt{\frac{16000000000000000}{91}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{16000000000000000}{91}} fel rhaniad ail israddau \frac{\sqrt{16000000000000000}}{\sqrt{91}}.

$$\frac{\sqrt{16000000000000000}}{\sqrt{91}}$$

Ffactora 16000000000000000=40000000^{2}\times 10. Ailysgrifennu ail isradd y lluoswm \sqrt{40000000^{2}\times 10} fel lluoswm ail israddau \sqrt{40000000^{2}}\sqrt{10}. Cymryd isradd 40000000^{2}.

$$\frac{40000000\sqrt{10}}{\sqrt{91}}$$

Mae'n rhesymoli enwadur \frac{40000000\sqrt{10}}{\sqrt{91}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{91}.

$$\frac{40000000\sqrt{10}\sqrt{91}}{\left(\sqrt{91}\right)^{2}}$$

Sgwâr \sqrt{91} yw 91.

$$\frac{40000000\sqrt{10}\sqrt{91}}{91}$$

I luosi \sqrt{10} a \sqrt{91}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{40000000\sqrt{910}}{91}$$