Sagot :
Bonsoir
d = 5 x 10⁻³ x 12 x 10⁴ / 3 x 10 x 2 x 10⁻¹
d = 60 x 10 / 6 x 10°
d = 60/6 = 10
E = 35 x 10²² x 5 x (10⁻²)⁶/42 x 10¹⁰
E = 175 x 10¹° / 42 x 10¹⁰
E = 175/42 x 10⁰
E = 175/42 x 1 = 175/42 = 25/6
Bonsoir,
Ex 81
[tex]D = \frac{5\times 10^{-3}\times 12 \times 10^4}{3\times 10 \times 2\times 10^{-1}}\\ D = \frac{5\times 2\times6\times 10^4\times 10^{-3}}{3\times 2\times 10^{-1}\times 10}\\ D = \frac{5\times 2\times 6 \times 10}{6}\\ D = 10\times 10 = 100[/tex]
Ex 82
[tex]\frac{35\times 10^{22}\times 5 \times \left(10^{-2}\right)^6}{42\times 10^{10}}\\ =\frac{7\times 5 \times 5 \times \times 10^{22} 10^{-12}}{6\times 7 \times 10^{10}}\\ =\frac{25\times 10^{10}}{6\times 10^{10}}\\ =\frac{25}{6}[/tex]