Enrhifo
\frac{1}{5}=0.2
Ffactor
\frac{1}{5} = 0.2
Rhannu
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\frac{5\sqrt{2}-\sqrt{18}}{\sqrt{200}}
Ffactora 50=5^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{5^{2}\times 2} fel lluoswm ail israddau \sqrt{5^{2}}\sqrt{2}. Cymryd isradd 5^{2}.
\frac{5\sqrt{2}-3\sqrt{2}}{\sqrt{200}}
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{2\sqrt{2}}{\sqrt{200}}
Cyfuno 5\sqrt{2} a -3\sqrt{2} i gael 2\sqrt{2}.
\frac{2\sqrt{2}}{10\sqrt{2}}
Ffactora 200=10^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{10^{2}\times 2} fel lluoswm ail israddau \sqrt{10^{2}}\sqrt{2}. Cymryd isradd 10^{2}.
\frac{1}{5}
Canslo 2\sqrt{2} yn y rhifiadur a'r enwadur.
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y = 3x + 4
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}