Matematika

Pertanyaan

Nilai dari(1/8)akar-⅔ - 81akar¼ +125 akar⅔ adalah

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  • [tex]( \frac{1}{8} ) {}^{ - \frac{2}{3} } - 81 {}^{ \frac{1}{4} } + 125 {}^{ \frac{2}{3} } \\ = 8 {}^{ \frac{2}{3} } - 81 {}^{ \frac{1}{4} } + 125 {}^{ \frac{2}{3} } \\ = 2 {}^{3 \times \frac{2}{3} } - 3 {}^{4 \times \frac{1}{4} } + 5 {}^{3 \times \frac{2}{3} } \\ = 2 {}^{2} - 3 + 5 {}^{2} \\ = 4 - 3 + 25 \\ = 26[/tex]

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