Datrys (2(1-1/2)+[(2)^2]^-3/-frac{3{4}-(-3)+2/5*3/8})=

$$( \frac { 2 ( 1 - \frac { 1 } { 2 } ) + [ ( 2 ) ^ { 2 } ] ^ { - 3 } } { - \frac { 3 } { 4 } - ( - 3 ) + \frac { 2 } { 5 } \cdot \frac { 3 } { 8 } } ) =$$

Enrhifo

$$\frac{325}{768}\approx 0.423177083$$

Camau Ateb

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 2 a -3 i gael -6.

$$\frac{2\left(1-\frac{1}{2}\right)+2^{-6}}{-\frac{3}{4}-\left(-3\right)+\frac{2}{5}\times \frac{3}{8}}$$

Tynnu \frac{1}{2} o 1 i gael \frac{1}{2}.

$$\frac{2\times \frac{1}{2}+2^{-6}}{-\frac{3}{4}-\left(-3\right)+\frac{2}{5}\times \frac{3}{8}}$$

Lluosi 2 a \frac{1}{2} i gael 1.

$$\frac{1+2^{-6}}{-\frac{3}{4}-\left(-3\right)+\frac{2}{5}\times \frac{3}{8}}$$

Cyfrifo 2 i bŵer -6 a chael \frac{1}{64}.

$$\frac{1+\frac{1}{64}}{-\frac{3}{4}-\left(-3\right)+\frac{2}{5}\times \frac{3}{8}}$$

Adio 1 a \frac{1}{64} i gael \frac{65}{64}.

$$\frac{\frac{65}{64}}{-\frac{3}{4}-\left(-3\right)+\frac{2}{5}\times \frac{3}{8}}$$

Gwrthwyneb -3 yw 3.

$$\frac{\frac{65}{64}}{-\frac{3}{4}+3+\frac{2}{5}\times \frac{3}{8}}$$

Adio -\frac{3}{4} a 3 i gael \frac{9}{4}.

$$\frac{\frac{65}{64}}{\frac{9}{4}+\frac{2}{5}\times \frac{3}{8}}$$

Lluosi \frac{2}{5} a \frac{3}{8} i gael \frac{3}{20}.

$$\frac{\frac{65}{64}}{\frac{9}{4}+\frac{3}{20}}$$

Adio \frac{9}{4} a \frac{3}{20} i gael \frac{12}{5}.

$$\frac{\frac{65}{64}}{\frac{12}{5}}$$

Rhannwch \frac{65}{64} â \frac{12}{5} drwy luosi \frac{65}{64} â chilydd \frac{12}{5}.

$$\frac{65}{64}\times \frac{5}{12}$$

Lluosi \frac{65}{64} a \frac{5}{12} i gael \frac{325}{768}.

$$\frac{325}{768}$$

Ffactor

$$\frac{5 ^ {2} \cdot 13}{2 ^ {8} \cdot 3} = 0.4231770833333333$$