Enrhifo
\frac{21y}{20}
Gwahaniaethu w.r.t. y
\frac{21}{20} = 1\frac{1}{20} = 1.05
Graff
Rhannu
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\frac{10y}{25}+\frac{26y}{40}
Cyfrifo 5 i bŵer 2 a chael 25.
\frac{2}{5}y+\frac{26y}{40}
Rhannu 10y â 25 i gael \frac{2}{5}y.
\frac{2}{5}y+\frac{13}{20}y
Rhannu 26y â 40 i gael \frac{13}{20}y.
\frac{21}{20}y
Cyfuno \frac{2}{5}y a \frac{13}{20}y i gael \frac{21}{20}y.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{10y}{25}+\frac{26y}{40})
Cyfrifo 5 i bŵer 2 a chael 25.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{2}{5}y+\frac{26y}{40})
Rhannu 10y â 25 i gael \frac{2}{5}y.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{2}{5}y+\frac{13}{20}y)
Rhannu 26y â 40 i gael \frac{13}{20}y.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{21}{20}y)
Cyfuno \frac{2}{5}y a \frac{13}{20}y i gael \frac{21}{20}y.
\frac{21}{20}y^{1-1}
Deilliad ax^{n} yw nax^{n-1}.
\frac{21}{20}y^{0}
Tynnu 1 o 1.
\frac{21}{20}\times 1
Ar gyfer unrhyw derm t ac eithrio 0, t^{0}=1.
\frac{21}{20}
Ar gyfer unrhyw derm t, t\times 1=t a 1t=t.
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}