Enrhifo
20\sqrt{2}\approx 28.284271247
Rhannu
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\sqrt{16\times 1\left(16-6\right)\left(16-11\right)}
Tynnu 15 o 16 i gael 1.
\sqrt{16\left(16-6\right)\left(16-11\right)}
Lluosi 16 a 1 i gael 16.
\sqrt{16\times 10\left(16-11\right)}
Tynnu 6 o 16 i gael 10.
\sqrt{160\left(16-11\right)}
Lluosi 16 a 10 i gael 160.
\sqrt{160\times 5}
Tynnu 11 o 16 i gael 5.
\sqrt{800}
Lluosi 160 a 5 i gael 800.
20\sqrt{2}
Ffactora 800=20^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{20^{2}\times 2} fel lluoswm ail israddau \sqrt{20^{2}}\sqrt{2}. Cymryd isradd 20^{2}.
Enghreifftiau
Hafaliad cwadratig
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
Rhifyddeg
699 * 533
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}