Datrys ar gyfer E
E=1
Neilltuo E
E≔1
Rhannu
Copïo i clipfwrdd
E=\frac{9}{25}+\left(\frac{5}{4}\right)^{-2}
Cyfrifo \frac{3}{5} i bŵer 2 a chael \frac{9}{25}.
E=\frac{9}{25}+\frac{16}{25}
Cyfrifo \frac{5}{4} i bŵer -2 a chael \frac{16}{25}.
E=1
Adio \frac{9}{25} a \frac{16}{25} i gael 1.
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