Rasionalkan penyebut 2 per 3 akar 3 +1​

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Rasionalkan penyebut 2 per 3 akar 3 +1​

{ frac{2}{3}}^{3 + 1} = { frac{2}{3} }^{4} = frac{2}{3} times frac{2}{3} times frac{2}{3} times frac{2}{3} = frac{16}{81}