Whakaoti mō f
\left\{\begin{matrix}f=\frac{\left(2-x\right)\left(x^{2}-1\right)}{y}\text{, }&y\neq 0\\f\in \mathrm{R}\text{, }&\left(x=2\text{ or }|x|=1\right)\text{ and }y=0\end{matrix}\right.
Graph
Tohaina
Kua tāruatia ki te papatopenga
fy=\left(x^{2}-1\right)\left(2-x\right)
Whakamahia te āhuatanga tuaritanga hei whakarea te x-1 ki te x+1 ka whakakotahi i ngā kupu rite.
fy=2x^{2}-x^{3}-2+x
Whakamahia te āhuatanga tohatoha hei whakarea te x^{2}-1 ki te 2-x.
yf=-x^{3}+2x^{2}+x-2
He hanga arowhānui tō te whārite.
\frac{yf}{y}=\frac{\left(2-x\right)\left(x^{2}-1\right)}{y}
Whakawehea ngā taha e rua ki te y.
f=\frac{\left(2-x\right)\left(x^{2}-1\right)}{y}
Mā te whakawehe ki te y ka wetekia te whakareanga ki te y.
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