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

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

Arvuta

$$\frac{1}{25000000}=0,00000004$$

Lahenduse etapid

Taandage 2\times 2\pi nii lugejas kui ka nimetajas.

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

Arvutage -7 aste 10 ja leidke \frac{1}{10000000}.

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

Korrutage 2 ja \frac{1}{10000000}, et leida \frac{1}{5000000}.

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

Avaldage \frac{\frac{1}{5000000}}{5} ühe murdarvuna.

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

Korrutage 5000000 ja 5, et leida 25000000.

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

Lahuta teguriteks

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