Datrys 5/sqrt{1-frac{5.76{9*3600^2}}}

$$\frac{ 5 }{ \sqrt{ 1- \frac{ 5.76 }{ 9 \times { 3600 }^{ 2 } } } }$$

Enrhifo

$$\frac{22500\sqrt{20249999}}{20249999}\approx 5.000000123$$

Camau Ateb

Cyfrifo 3600 i bŵer 2 a chael 12960000.

$$\frac{5}{\sqrt{1-\frac{5.76}{9\times 12960000}}}$$

Lluosi 9 a 12960000 i gael 116640000.

$$\frac{5}{\sqrt{1-\frac{5.76}{116640000}}}$$

Ehangu \frac{5.76}{116640000} drwy luosi'r rhifiadur a'r enwadur gyda 100.

$$\frac{5}{\sqrt{1-\frac{576}{11664000000}}}$$

Lleihau'r ffracsiwn \frac{576}{11664000000} i'r graddau lleiaf posib drwy dynnu a chanslo allan 576.

$$\frac{5}{\sqrt{1-\frac{1}{20250000}}}$$

Troswch y rhif degol 1 i’r ffracsiwn \frac{20250000}{20250000}.

$$\frac{5}{\sqrt{\frac{20250000}{20250000}-\frac{1}{20250000}}}$$

Gan fod gan \frac{20250000}{20250000} a \frac{1}{20250000} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{5}{\sqrt{\frac{20250000-1}{20250000}}}$$

Tynnu 1 o 20250000 i gael 20249999.

$$\frac{5}{\sqrt{\frac{20249999}{20250000}}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{20249999}{20250000}} fel rhaniad ail israddau \frac{\sqrt{20249999}}{\sqrt{20250000}}.

$$\frac{5}{\frac{\sqrt{20249999}}{\sqrt{20250000}}}$$

Cyfrifo ail isradd 20250000 a chael 4500.

$$\frac{5}{\frac{\sqrt{20249999}}{4500}}$$

Rhannwch 5 â \frac{\sqrt{20249999}}{4500} drwy luosi 5 â chilydd \frac{\sqrt{20249999}}{4500}.

$$\frac{5\times 4500}{\sqrt{20249999}}$$

Mae'n rhesymoli enwadur \frac{5\times 4500}{\sqrt{20249999}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{20249999}.

$$\frac{5\times 4500\sqrt{20249999}}{\left(\sqrt{20249999}\right)^{2}}$$

Sgwâr \sqrt{20249999} yw 20249999.

$$\frac{5\times 4500\sqrt{20249999}}{20249999}$$

Lluosi 5 a 4500 i gael 22500.

$$\frac{22500\sqrt{20249999}}{20249999}$$