Nilai dari ( 221a5 – 221a 20 )2074 : ( 25 )\xbd,

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Nilai dari ( √5 – √ 20 )⁴ : ( 25 )½
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Jawab:

Penjelasan dengan langkah-langkah:

\sf (\sqrt5- \sqrt{20})^4 : (25)^{\frac{1}{2}} =\\\\=(\sqrt5- 2\sqrt{5})^4 : (5^2)^{\frac{1}{2}} \\\\=(-\sqrt5)^4 : (5)^{1}\\\\=(25) : (5)=5

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