Enrhifo
7
Ffactor
7
Cwis
Arithmetic
5 problemau tebyg i:
\sqrt{ 20 } \times \sqrt{ 5 } - \frac{ \sqrt{ 63 } }{ \sqrt{ 7 } }
Rhannu
Copïo i clipfwrdd
\sqrt{5}\sqrt{4}\sqrt{5}-\frac{\sqrt{63}}{\sqrt{7}}
Ffactora 20=5\times 4. Ailysgrifennu ail isradd y lluoswm \sqrt{5\times 4} fel lluoswm ail israddau \sqrt{5}\sqrt{4}.
5\sqrt{4}-\frac{\sqrt{63}}{\sqrt{7}}
Lluosi \sqrt{5} a \sqrt{5} i gael 5.
5\times 2-\frac{\sqrt{63}}{\sqrt{7}}
Cyfrifo ail isradd 4 a chael 2.
10-\frac{\sqrt{63}}{\sqrt{7}}
Lluosi 5 a 2 i gael 10.
10-\sqrt{9}
Ailysgrifennu rhaniad ail israddau \frac{\sqrt{63}}{\sqrt{7}} fel ail isradd y rhaniad \sqrt{\frac{63}{7}} a gwneud y swm rhannu.
10-3
Cyfrifo ail isradd 9 a chael 3.
7
Tynnu 3 o 10 i gael 7.
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]
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
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