Datrys 5!/4!*1!*(5!/4!*1!)

$$\frac{ 5 ! }{ 4 ! \times 1 ! } \times ( \frac{ 5 ! }{ 4 ! \times 1 ! } )$$

Enrhifo

$$25$$

Camau Ateb

Lluosi \frac{5!}{4!\times 1!} a \frac{5!}{4!\times 1!} i gael \left(\frac{5!}{4!\times 1!}\right)^{2}.

$$\left(\frac{5!}{4!\times 1!}\right)^{2}$$

Ffactorial 5 yw 120.

$$\left(\frac{120}{4!\times 1!}\right)^{2}$$

Ffactorial 4 yw 24.

$$\left(\frac{120}{24\times 1!}\right)^{2}$$

Ffactorial 1 yw 1.

$$\left(\frac{120}{24\times 1}\right)^{2}$$

Lluosi 24 a 1 i gael 24.

$$\left(\frac{120}{24}\right)^{2}$$

Rhannu 120 â 24 i gael 5.

$$5^{2}$$

Cyfrifo 5 i bŵer 2 a chael 25.

$$25$$

Ffactor

$$5^{2}$$