Réitigh sqrt{9/2}+sqrt{25/8}+sqrt[3]{3000}-8sqrt[3]{3}-sqrt[3]{24}+sqrt{1/8}

$$\sqrt { \frac { 9 } { 2 } } + \sqrt { \frac { 25 } { 8 } } + \sqrt[ 3 ] { 3000 } - 8 \sqrt[ 3 ] { 3 } - \sqrt[ 3 ] { 24 } + \sqrt { \frac { 1 } { 8 } }$$

Luacháil

$$3\sqrt{2}\approx 4.242640687$$

Céimeanna Réitigh

Athscríobh fréamh cearnach na roinnte \sqrt{\frac{9}{2}} mar roinnt na bhfréamhacha cearnacha \frac{\sqrt{9}}{\sqrt{2}}.

$$\frac{\sqrt{9}}{\sqrt{2}}+\sqrt{\frac{25}{8}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Áirigh fréamh chearnach 9 agus faigh 3.

$$\frac{3}{\sqrt{2}}+\sqrt{\frac{25}{8}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Iolraigh an t-uimhreoir agus an t-ainmneoir faoi \sqrt{2} chun ainmneoir \frac{3}{\sqrt{2}} a thiontú in uimhir chóimheasta.

$$\frac{3\sqrt{2}}{\left(\sqrt{2}\right)^{2}}+\sqrt{\frac{25}{8}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Is é 2 uimhir chearnach \sqrt{2}.

$$\frac{3\sqrt{2}}{2}+\sqrt{\frac{25}{8}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Athscríobh fréamh cearnach na roinnte \sqrt{\frac{25}{8}} mar roinnt na bhfréamhacha cearnacha \frac{\sqrt{25}}{\sqrt{8}}.

$$\frac{3\sqrt{2}}{2}+\frac{\sqrt{25}}{\sqrt{8}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Áirigh fréamh chearnach 25 agus faigh 5.

$$\frac{3\sqrt{2}}{2}+\frac{5}{\sqrt{8}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Fachtóirigh 8=2^{2}\times 2. Athscríobh fréamh cearnach an toraidh \sqrt{2^{2}\times 2} mar thoradh na bhfréamhacha cearnacha \sqrt{2^{2}}\sqrt{2}. Tóg fréamh chearnach 2^{2}.

$$\frac{3\sqrt{2}}{2}+\frac{5}{2\sqrt{2}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Iolraigh an t-uimhreoir agus an t-ainmneoir faoi \sqrt{2} chun ainmneoir \frac{5}{2\sqrt{2}} a thiontú in uimhir chóimheasta.

$$\frac{3\sqrt{2}}{2}+\frac{5\sqrt{2}}{2\left(\sqrt{2}\right)^{2}}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Is é 2 uimhir chearnach \sqrt{2}.

$$\frac{3\sqrt{2}}{2}+\frac{5\sqrt{2}}{2\times 2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Méadaigh 2 agus 2 chun 4 a fháil.

$$\frac{3\sqrt{2}}{2}+\frac{5\sqrt{2}}{4}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Comhcheangail \frac{3\sqrt{2}}{2} agus \frac{5\sqrt{2}}{4} chun \frac{11}{4}\sqrt{2} a fháil.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\sqrt{\frac{1}{8}}$$

Athscríobh fréamh cearnach na roinnte \sqrt{\frac{1}{8}} mar roinnt na bhfréamhacha cearnacha \frac{\sqrt{1}}{\sqrt{8}}.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\frac{\sqrt{1}}{\sqrt{8}}$$

Áirigh fréamh chearnach 1 agus faigh 1.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\frac{1}{\sqrt{8}}$$

Fachtóirigh 8=2^{2}\times 2. Athscríobh fréamh cearnach an toraidh \sqrt{2^{2}\times 2} mar thoradh na bhfréamhacha cearnacha \sqrt{2^{2}}\sqrt{2}. Tóg fréamh chearnach 2^{2}.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\frac{1}{2\sqrt{2}}$$

Iolraigh an t-uimhreoir agus an t-ainmneoir faoi \sqrt{2} chun ainmneoir \frac{1}{2\sqrt{2}} a thiontú in uimhir chóimheasta.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\frac{\sqrt{2}}{2\left(\sqrt{2}\right)^{2}}$$

Is é 2 uimhir chearnach \sqrt{2}.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\frac{\sqrt{2}}{2\times 2}$$

Méadaigh 2 agus 2 chun 4 a fháil.

$$\frac{11}{4}\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}+\frac{\sqrt{2}}{4}$$

Comhcheangail \frac{11}{4}\sqrt{2} agus \frac{\sqrt{2}}{4} chun 3\sqrt{2} a fháil.

$$3\sqrt{2}+\sqrt[3]{3000}-8\sqrt[3]{3}-\sqrt[3]{24}$$