Datrys 6.63*10^-34*3*10^8/0.42*10^-6-1.6*10^-19*0.75

$$\frac { 6.63 \cdot 10 ^ { - 34 } \cdot 3 \cdot 10 ^ { 8 } } { 0.42 \cdot 10 ^ { - 6 } } - 1.6 \cdot 10 ^ { - 19 } \cdot 0.75$$

Enrhifo

$$\frac{99}{280000000000000000000}\approx 3.535714286 \cdot 10^{-19}$$

Camau Ateb

Er mwyn lluosi pwerau sy’n rhannu’r un sail, adiwch eu esbonyddion. Adiwch -34 a 8 i gael -26.

$$\frac{6.63\times 10^{-26}\times 3}{0.42\times 10^{-6}}-1.6\times 10^{-19}\times 0.75$$

Er mwyn rhannu pwerau sy’n rhannu’r un sail, tynnwch esbonydd yr enwadur o esbonydd y rhifiadur.

$$\frac{3\times 6.63}{0.42\times 10^{20}}-1.6\times 10^{-19}\times 0.75$$

Lluosi 3 a 6.63 i gael 19.89.

$$\frac{19.89}{0.42\times 10^{20}}-1.6\times 10^{-19}\times 0.75$$

Cyfrifo 10 i bŵer 20 a chael 100000000000000000000.

$$\frac{19.89}{0.42\times 100000000000000000000}-1.6\times 10^{-19}\times 0.75$$

Lluosi 0.42 a 100000000000000000000 i gael 42000000000000000000.

$$\frac{19.89}{42000000000000000000}-1.6\times 10^{-19}\times 0.75$$

Ehangu \frac{19.89}{42000000000000000000} drwy luosi'r rhifiadur a'r enwadur gyda 100.

$$\frac{1989}{4200000000000000000000}-1.6\times 10^{-19}\times 0.75$$

Lleihau'r ffracsiwn \frac{1989}{4200000000000000000000} i'r graddau lleiaf posib drwy dynnu a chanslo allan 3.

$$\frac{663}{1400000000000000000000}-1.6\times 10^{-19}\times 0.75$$

Cyfrifo 10 i bŵer -19 a chael \frac{1}{10000000000000000000}.

$$\frac{663}{1400000000000000000000}-1.6\times \frac{1}{10000000000000000000}\times 0.75$$

Lluosi 1.6 a \frac{1}{10000000000000000000} i gael \frac{1}{6250000000000000000}.

$$\frac{663}{1400000000000000000000}-\frac{1}{6250000000000000000}\times 0.75$$

Lluosi \frac{1}{6250000000000000000} a 0.75 i gael \frac{3}{25000000000000000000}.

$$\frac{663}{1400000000000000000000}-\frac{3}{25000000000000000000}$$

Tynnu \frac{3}{25000000000000000000} o \frac{663}{1400000000000000000000} i gael \frac{99}{280000000000000000000}.

$$\frac{99}{280000000000000000000}$$

Ffactor

$$\frac{11 \cdot 3 ^ {2}}{7 \cdot 2 ^ {21} \cdot 5 ^ {19}} = 3.5357142857142856 \times 10^{-19}$$