Enrhifo
\frac{323}{81}\approx 3.987654321
Ffactor
\frac{17 \cdot 19}{3 ^ {4}} = 3\frac{80}{81} = 3.9876543209876543
Rhannu
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-\frac{1}{81}+\left(\frac{9^{1}}{6^{2}}\right)^{-1}
Cyfrifo 9 i bŵer -2 a chael \frac{1}{81}.
-\frac{1}{81}+\left(\frac{9}{6^{2}}\right)^{-1}
Cyfrifo 9 i bŵer 1 a chael 9.
-\frac{1}{81}+\left(\frac{9}{36}\right)^{-1}
Cyfrifo 6 i bŵer 2 a chael 36.
-\frac{1}{81}+\left(\frac{1}{4}\right)^{-1}
Lleihau'r ffracsiwn \frac{9}{36} i'r graddau lleiaf posib drwy dynnu a chanslo allan 9.
-\frac{1}{81}+4
Cyfrifo \frac{1}{4} i bŵer -1 a chael 4.
\frac{323}{81}
Adio -\frac{1}{81} a 4 i gael \frac{323}{81}.
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}