\sqrt{ { 2 }^{ 2 } + { 1 }^{ 2 } -2 \cdot 2 \cdot 1 \times (-025 }
Enrhifo
\sqrt{105}\approx 10.246950766
Rhannu
Copïo i clipfwrdd
\sqrt{4+1^{2}-2\times 2\times 1\left(-25\right)}
Cyfrifo 2 i bŵer 2 a chael 4.
\sqrt{4+1-2\times 2\times 1\left(-25\right)}
Cyfrifo 1 i bŵer 2 a chael 1.
\sqrt{5-2\times 2\times 1\left(-25\right)}
Adio 4 a 1 i gael 5.
\sqrt{5-4\times 1\left(-25\right)}
Lluosi 2 a 2 i gael 4.
\sqrt{5-4\left(-25\right)}
Lluosi 4 a 1 i gael 4.
\sqrt{5-\left(-100\right)}
Lluosi 4 a -25 i gael -100.
\sqrt{5+100}
Gwrthwyneb -100 yw 100.
\sqrt{105}
Adio 5 a 100 i gael 105.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
Matrics
\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 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}