Datrys =3*45+3*45/sqrt{3^2+3^2sqrt{45^2+45^2}}

$$= \frac { 3 \cdot 45 + 3 \cdot 45 } { \sqrt { 3 ^ { 2 } + 3 ^ { 2 } } \sqrt { 45 ^ { 2 } + 45 ^ { 2 } } }$$

Enrhifo

$$1$$

Camau Ateb

Lluosi 3 a 45 i gael 135. Lluosi 3 a 45 i gael 135.

$$\frac{135+135}{\sqrt{3^{2}+3^{2}}\sqrt{45^{2}+45^{2}}}$$

Adio 135 a 135 i gael 270.

$$\frac{270}{\sqrt{3^{2}+3^{2}}\sqrt{45^{2}+45^{2}}}$$

Cyfrifo 3 i bŵer 2 a chael 9.

$$\frac{270}{\sqrt{9+3^{2}}\sqrt{45^{2}+45^{2}}}$$

Cyfrifo 3 i bŵer 2 a chael 9.

$$\frac{270}{\sqrt{9+9}\sqrt{45^{2}+45^{2}}}$$

Adio 9 a 9 i gael 18.

$$\frac{270}{\sqrt{18}\sqrt{45^{2}+45^{2}}}$$

Ffactora 18=3^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 2} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{2}. Cymryd isradd 3^{2}.

$$\frac{270}{3\sqrt{2}\sqrt{45^{2}+45^{2}}}$$

Cyfrifo 45 i bŵer 2 a chael 2025.

$$\frac{270}{3\sqrt{2}\sqrt{2025+45^{2}}}$$

Cyfrifo 45 i bŵer 2 a chael 2025.

$$\frac{270}{3\sqrt{2}\sqrt{2025+2025}}$$

Adio 2025 a 2025 i gael 4050.

$$\frac{270}{3\sqrt{2}\sqrt{4050}}$$

Ffactora 4050=45^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{45^{2}\times 2} fel lluoswm ail israddau \sqrt{45^{2}}\sqrt{2}. Cymryd isradd 45^{2}.

$$\frac{270}{3\sqrt{2}\times 45\sqrt{2}}$$

Lluosi 3 a 45 i gael 135.

$$\frac{270}{135\sqrt{2}\sqrt{2}}$$

Lluosi \sqrt{2} a \sqrt{2} i gael 2.

$$\frac{270}{135\times 2}$$

Lluosi 135 a 2 i gael 270.

$$\frac{270}{270}$$

Rhannu 270 â 270 i gael 1.

$$1$$

Ffactor

$$1$$