Datrys sqrt{1/2^4-1}*89916

$$\sqrt{ \frac{ 1 }{ { 2 }^{ 4 } -1 } } \times 89916$$

Enrhifo

$$\frac{29972\sqrt{15}}{5}\approx 23216.211370506$$

Camau Ateb

Cyfrifo 2 i bŵer 4 a chael 16.

$$89916\sqrt{\frac{1}{16-1}}$$

Tynnu 1 o 16 i gael 15.

$$89916\sqrt{\frac{1}{15}}$$

Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{1}{15}} fel rhaniad ail israddau \frac{\sqrt{1}}{\sqrt{15}}.

$$89916\times \frac{\sqrt{1}}{\sqrt{15}}$$

Cyfrifo ail isradd 1 a chael 1.

$$89916\times \frac{1}{\sqrt{15}}$$

Mae'n rhesymoli enwadur \frac{1}{\sqrt{15}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{15}.

$$89916\times \frac{\sqrt{15}}{\left(\sqrt{15}\right)^{2}}$$

Sgwâr \sqrt{15} yw 15.

$$89916\times \frac{\sqrt{15}}{15}$$

Mynegwch 89916\times \frac{\sqrt{15}}{15} fel ffracsiwn unigol.

$$\frac{89916\sqrt{15}}{15}$$

Rhannu 89916\sqrt{15} â 15 i gael \frac{29972}{5}\sqrt{15}.

$$\frac{29972}{5}\sqrt{15}$$