Enrhifo
\frac{250}{9\pi }\approx 8.841941283
Rhannu
Copïo i clipfwrdd
\frac{0.1\times 4}{\pi \times 0.12^{2}}
Rhannwch 0.1 â \frac{\pi \times 0.12^{2}}{4} drwy luosi 0.1 â chilydd \frac{\pi \times 0.12^{2}}{4}.
\frac{0.4}{\pi \times 0.12^{2}}
Lluosi 0.1 a 4 i gael 0.4.
\frac{0.4}{\pi \times 0.0144}
Cyfrifo 0.12 i bŵer 2 a chael 0.0144.
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}