Datrys 9x-1+3x+1+9x-1+3x+1-9x-1+3x+1

$$9x-1+3x+1+9x-1+3x+1-9x-1+3x+1$$

Enrhifo

$$18x$$

Camau Ateb

Cyfuno 9x a 3x i gael 12x.

$$12x-1+1+9x-1+3x+1-9x-1+3x+1$$

Adio -1 a 1 i gael 0.

$$12x+9x-1+3x+1-9x-1+3x+1$$

Cyfuno 12x a 3x i gael 15x.

$$15x+9x-1+1-9x-1+3x+1$$

Adio -1 a 1 i gael 0.

$$15x+9x-9x-1+3x+1$$

Cyfuno 15x a 3x i gael 18x.

$$18x+9x-9x-1+1$$

Adio -1 a 1 i gael 0.

$$18x+9x-9x$$

Cyfuno 18x a 9x i gael 27x.

$$27x-9x$$

Cyfuno 27x a -9x i gael 18x.

$$18x$$

Gwahaniaethu w.r.t. x

$$18$$

Camau gan Ddefnyddio Diffiniad o Ddeilliad

Cyfuno 9x a 3x i gael 12x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(12x-1+1+9x-1+3x+1-9x-1+3x+1)$$

Adio -1 a 1 i gael 0.

$$\frac{\mathrm{d}}{\mathrm{d}x}(12x+9x-1+3x+1-9x-1+3x+1)$$

Cyfuno 12x a 3x i gael 15x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(15x+9x-1+1-9x-1+3x+1)$$

Adio -1 a 1 i gael 0.

$$\frac{\mathrm{d}}{\mathrm{d}x}(15x+9x-9x-1+3x+1)$$

Cyfuno 15x a 3x i gael 18x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(18x+9x-9x-1+1)$$

Adio -1 a 1 i gael 0.

$$\frac{\mathrm{d}}{\mathrm{d}x}(18x+9x-9x)$$

Cyfuno 18x a 9x i gael 27x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(27x-9x)$$

Cyfuno 27x a -9x i gael 18x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(18x)$$

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

$$18x^{1-1}$$

Tynnu 1 o 1.

$$18x^{0}$$

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

$$18\times 1$$

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

$$18$$