Datrys (x*85/100)+x=

$$( \frac{ x \times 85 }{ 100 } )+x=$$

Enrhifo

$$\frac{37x}{20}$$

Camau Ateb

Rhannu x\times 85 â 100 i gael x\times \frac{17}{20}.

$$x\times \frac{17}{20}+x$$

Cyfuno x\times \frac{17}{20} a x i gael \frac{37}{20}x.

$$\frac{37}{20}x$$

Gwahaniaethu w.r.t. x

$$\frac{37}{20} = 1\frac{17}{20} = 1.85$$

Camau gan Ddefnyddio Diffiniad o Ddeilliad

Rhannu x\times 85 â 100 i gael x\times \frac{17}{20}.

$$\frac{\mathrm{d}}{\mathrm{d}x}(x\times \frac{17}{20}+x)$$

Cyfuno x\times \frac{17}{20} a x i gael \frac{37}{20}x.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{37}{20}x)$$

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

$$\frac{37}{20}x^{1-1}$$

Tynnu 1 o 1.

$$\frac{37}{20}x^{0}$$

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

$$\frac{37}{20}\times 1$$

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

$$\frac{37}{20}$$