Datrys (4pi*10^-7)(2)/(2pi)(10)

$$\frac{ (4 \pi \times { 10 }^{ -7 } )(2) }{ (2 \pi )(10) }$$

Enrhifo

$$\frac{1}{25000000}=0.00000004$$

Camau Ateb

Canslo 2\times 2\pi yn y rhifiadur a'r enwadur.

$$\frac{2\times 10^{-7}}{5}$$

Cyfrifo 10 i bŵer -7 a chael \frac{1}{10000000}.

$$\frac{2\times \frac{1}{10000000}}{5}$$

Lluosi 2 a \frac{1}{10000000} i gael \frac{1}{5000000}.

$$\frac{\frac{1}{5000000}}{5}$$

Mynegwch \frac{\frac{1}{5000000}}{5} fel ffracsiwn unigol.

$$\frac{1}{5000000\times 5}$$

Lluosi 5000000 a 5 i gael 25000000.

$$\frac{1}{25000000}$$

Ffactor

$$\frac{1}{2 ^ {6} \cdot 5 ^ {8}} = 4 \times 10^{-8}$$