Datrys sqrt{75+(4.5^2+40)/6.5*10^4}

$$\sqrt { \frac { 75 + ( 4.5 ^ { 2 } + 40 ) } { 6.5 \times 10 ^ { 4 } } }$$

Enrhifo

$$\frac{\sqrt{14066}}{2600}\approx 0.045615449$$

Camau Ateb

Cyfrifo 4.5 i bŵer 2 a chael 20.25.

$$\sqrt{\frac{75+20.25+40}{6.5\times 10^{4}}}$$

Adio 75 a 20.25 i gael 95.25.

$$\sqrt{\frac{95.25+40}{6.5\times 10^{4}}}$$

Adio 95.25 a 40 i gael 135.25.

$$\sqrt{\frac{135.25}{6.5\times 10^{4}}}$$

Cyfrifo 10 i bŵer 4 a chael 10000.

$$\sqrt{\frac{135.25}{6.5\times 10000}}$$

Lluosi 6.5 a 10000 i gael 65000.

$$\sqrt{\frac{135.25}{65000}}$$

Ehangu \frac{135.25}{65000} drwy luosi'r rhifiadur a'r enwadur gyda 100.

$$\sqrt{\frac{13525}{6500000}}$$

Lleihau'r ffracsiwn \frac{13525}{6500000} i'r graddau lleiaf posib drwy dynnu a chanslo allan 25.

$$\sqrt{\frac{541}{260000}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{541}{260000}} fel rhaniad ail israddau \frac{\sqrt{541}}{\sqrt{260000}}.

$$\frac{\sqrt{541}}{\sqrt{260000}}$$

Ffactora 260000=100^{2}\times 26. Ailysgrifennu ail isradd y lluoswm \sqrt{100^{2}\times 26} fel lluoswm ail israddau \sqrt{100^{2}}\sqrt{26}. Cymryd isradd 100^{2}.

$$\frac{\sqrt{541}}{100\sqrt{26}}$$

Mae'n rhesymoli enwadur \frac{\sqrt{541}}{100\sqrt{26}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{26}.

$$\frac{\sqrt{541}\sqrt{26}}{100\left(\sqrt{26}\right)^{2}}$$

Sgwâr \sqrt{26} yw 26.

$$\frac{\sqrt{541}\sqrt{26}}{100\times 26}$$

I luosi \sqrt{541} a \sqrt{26}, dylid lluosi'r rhifau dan yr ail isradd.

$$\frac{\sqrt{14066}}{100\times 26}$$

Lluosi 100 a 26 i gael 2600.

$$\frac{\sqrt{14066}}{2600}$$