Enrhifo
\frac{\sqrt{393}}{4}\approx 4.9560569
Rhannu
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\sqrt{\frac{121}{16}+1+16}
Cyfrifo \frac{11}{4} i bŵer 2 a chael \frac{121}{16}.
\sqrt{\frac{121}{16}+\frac{16}{16}+16}
Troswch y rhif degol 1 i’r ffracsiwn \frac{16}{16}.
\sqrt{\frac{121+16}{16}+16}
Gan fod gan \frac{121}{16} a \frac{16}{16} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.
\sqrt{\frac{137}{16}+16}
Adio 121 a 16 i gael 137.
\sqrt{\frac{137}{16}+\frac{256}{16}}
Troswch y rhif degol 16 i’r ffracsiwn \frac{256}{16}.
\sqrt{\frac{137+256}{16}}
Gan fod gan \frac{137}{16} a \frac{256}{16} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.
\sqrt{\frac{393}{16}}
Adio 137 a 256 i gael 393.
\frac{\sqrt{393}}{\sqrt{16}}
Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{393}{16}} fel rhaniad ail israddau \frac{\sqrt{393}}{\sqrt{16}}.
\frac{\sqrt{393}}{4}
Cyfrifo ail isradd 16 a chael 4.
Enghreifftiau
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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]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}