Datrys ar gyfer x
x\in \begin{bmatrix}-\sqrt{5},\sqrt{5}\end{bmatrix}
Graff
Rhannu
Copïo i clipfwrdd
x^{2}\leq \left(\sqrt{5}\right)^{2}
Cyfrifo ail isradd 5 a chael \sqrt{5}. Ailysgrifennwch 5 fel \left(\sqrt{5}\right)^{2}.
|x|\leq \sqrt{5}
Mae anghydraddoldeb ar gyfer |x|\leq \sqrt{5}.
x\in \begin{bmatrix}-\sqrt{5},\sqrt{5}\end{bmatrix}
Ailysgrifennwch |x|\leq \sqrt{5} fel x\in \left[-\sqrt{5},\sqrt{5}\right].
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