Datrys 125*10^-3r

$$125 \times 10 ^ { - 3 } r$$

Enrhifo

$$\frac{r}{8}$$

Camau Ateb

Cyfrifo 10 i bŵer -3 a chael \frac{1}{1000}.

$$125\times \frac{1}{1000}r$$

Lluosi 125 a \frac{1}{1000} i gael \frac{1}{8}.

$$\frac{1}{8}r$$

Gwahaniaethu w.r.t. r

$$\frac{1}{8} = 0.125$$

Camau gan Ddefnyddio Diffiniad o Ddeilliad

Cyfrifo 10 i bŵer -3 a chael \frac{1}{1000}.

$$\frac{\mathrm{d}}{\mathrm{d}r}(125\times \frac{1}{1000}r)$$

Lluosi 125 a \frac{1}{1000} i gael \frac{1}{8}.

$$\frac{\mathrm{d}}{\mathrm{d}r}(\frac{1}{8}r)$$

Deilliad ax^{n} yw nax^{n-1}.

$$\frac{1}{8}r^{1-1}$$

Tynnu 1 o 1.

$$\frac{1}{8}r^{0}$$

Ar gyfer unrhyw derm t ac eithrio 0, t^{0}=1.

$$\frac{1}{8}\times 1$$

Ar gyfer unrhyw derm t, t\times 1=t a 1t=t.

$$\frac{1}{8}$$