Datrys sqrt{2*67*10^9/91*10^-3}

$$\sqrt{ \frac{ 2 \times 67 \times { 10 }^{ 9 } }{ 91 \times { 10 }^{ -3 } } }$$

Enrhifo

$$\frac{1000000\sqrt{12194}}{91}\approx 1213477.429756101$$

Camau Ateb

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

$$\sqrt{\frac{2\times 67\times 10^{12}}{91}}$$

Lluosi 2 a 67 i gael 134.

$$\sqrt{\frac{134\times 10^{12}}{91}}$$

Cyfrifo 10 i bŵer 12 a chael 1000000000000.

$$\sqrt{\frac{134\times 1000000000000}{91}}$$

Lluosi 134 a 1000000000000 i gael 134000000000000.

$$\sqrt{\frac{134000000000000}{91}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{134000000000000}{91}} fel rhaniad ail israddau \frac{\sqrt{134000000000000}}{\sqrt{91}}.

$$\frac{\sqrt{134000000000000}}{\sqrt{91}}$$

Ffactora 134000000000000=1000000^{2}\times 134. Ailysgrifennu ail isradd y lluoswm \sqrt{1000000^{2}\times 134} fel lluoswm ail israddau \sqrt{1000000^{2}}\sqrt{134}. Cymryd isradd 1000000^{2}.

$$\frac{1000000\sqrt{134}}{\sqrt{91}}$$

Mae'n rhesymoli enwadur \frac{1000000\sqrt{134}}{\sqrt{91}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{91}.

$$\frac{1000000\sqrt{134}\sqrt{91}}{\left(\sqrt{91}\right)^{2}}$$

Sgwâr \sqrt{91} yw 91.

$$\frac{1000000\sqrt{134}\sqrt{91}}{91}$$

I luosi \sqrt{134} a \sqrt{91}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{1000000\sqrt{12194}}{91}$$