Datrys frac{(-7)^{-2}*3^{-1}*11^{-2}*a^-4}{22^-4*21^-3*a^-6}

$$\frac { ( - 7 ) ^ { - 2 } \times 3 ^ { - 1 } \times 11 ^ { - 2 } \times a ^ { - 4 } } { 22 ^ { - 4 } \times 21 ^ { - 3 } \times a ^ { - 6 } }$$

Enrhifo

$$121968a^{2}$$

Camau Ateb

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

$$\frac{\left(-7\right)^{-2}\times 11^{-2}\times \frac{1}{3}a^{2}}{21^{-3}\times 22^{-4}}$$

Cyfrifo -7 i bŵer -2 a chael \frac{1}{49}.

$$\frac{\frac{1}{49}\times 11^{-2}\times \frac{1}{3}a^{2}}{21^{-3}\times 22^{-4}}$$

Cyfrifo 11 i bŵer -2 a chael \frac{1}{121}.

$$\frac{\frac{1}{49}\times \frac{1}{121}\times \frac{1}{3}a^{2}}{21^{-3}\times 22^{-4}}$$

Lluosi \frac{1}{49} a \frac{1}{121} i gael \frac{1}{5929}.

$$\frac{\frac{1}{5929}\times \frac{1}{3}a^{2}}{21^{-3}\times 22^{-4}}$$

Lluosi \frac{1}{5929} a \frac{1}{3} i gael \frac{1}{17787}.

$$\frac{\frac{1}{17787}a^{2}}{21^{-3}\times 22^{-4}}$$

Cyfrifo 21 i bŵer -3 a chael \frac{1}{9261}.

$$\frac{\frac{1}{17787}a^{2}}{\frac{1}{9261}\times 22^{-4}}$$

Cyfrifo 22 i bŵer -4 a chael \frac{1}{234256}.

$$\frac{\frac{1}{17787}a^{2}}{\frac{1}{9261}\times \frac{1}{234256}}$$

Lluosi \frac{1}{9261} a \frac{1}{234256} i gael \frac{1}{2169444816}.

$$\frac{\frac{1}{17787}a^{2}}{\frac{1}{2169444816}}$$

Rhannwch \frac{1}{17787}a^{2} â \frac{1}{2169444816} drwy luosi \frac{1}{17787}a^{2} â chilydd \frac{1}{2169444816}.

$$\frac{1}{17787}a^{2}\times 2169444816$$

Lluosi \frac{1}{17787} a 2169444816 i gael 121968.

$$121968a^{2}$$

Gwahaniaethu w.r.t. a

$$243936a$$

Camau Ateb

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

$$\frac{\mathrm{d}}{\mathrm{d}a}(\frac{\frac{1}{17787}}{\frac{1}{2169444816}}a^{-4-\left(-6\right)})$$

Gwneud y symiau.

$$\frac{\mathrm{d}}{\mathrm{d}a}(121968a^{2})$$

Deilliad polynomaial yw swm deilliadau ei dermau. Deilliad term cyson yw 0. Y deilliad o ax^{n} yw nax^{n-1}.

$$2\times 121968a^{2-1}$$

Gwneud y symiau.

$$243936a^{1}$$

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

$$243936a$$