Question

Calcular:
a) a raiz cubica de -8 mais a raiz quarta de 16
b) a raiz indice 11 de -2048 menos a raiz quadrada de 64

Answer 1

³√-8 + ⁴√16

³√(-2)³ + ⁴√2⁴

(-2) + 2

0 ✓

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¹¹√-2048 - √64

¹¹√(-2)¹¹ - 8

(-2) - 8

-10 ✓

Answer 2

a)$\sqrt[3]{-8}$+$\sqrt[4]{16}$=-2+2=0

(-2)(-2)(-2)=-8  2.2.2.2=16

b)$\sqrt[11]{-2048}$-$\sqrt[2]{64}$=(-2)-(8)=(-2)-8=8+2=10

(-2)¹¹=-2048