Question

Determine o valor das expressões
A)
$\sqrt{16} + \sqrt[3]{27}$
B)
$\sqrt[4]{81} - \sqrt{121} + \sqrt[5]{2 ^{5} }$
C)
$\sqrt[3]{8} + \sqrt{36} + \sqrt[7]{ {5}^{7} } - \sqrt[6]{ {8}^{6} }$
D)
$\sqrt[4]{1} + {4}^{3} - \sqrt[3]{64} - {5}^{ - 2}$

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Answer 1

Oie, Td Bom?!

A)

$= \sqrt{16} + \sqrt[3]{27}$

$= 4 + 3$

$= 7$

B)

$= \sqrt[4]{81} - \sqrt{121} + \sqrt[5]{2 {}^{5} }$

$= 3 - 11 + 2$

$= 5 - 11$

$= - 6$

C)

$= \sqrt[3]{8} + \sqrt{36} + \sqrt[7]{5 {}^{7} } - \sqrt[6]{8 {}^{6} }$

$= 2 + 6 + 5 - 8$

$= 13 - 8$

$= 5$

D)

$= \sqrt[4]{1} + 4 {}^{3} - \sqrt[3]{64} - 5 {}^{ - 2}$

$= 1 + 64 - 4 - \frac{1}{5 {}^{2} }$

$= 65 - 4 - \frac{1}{5 {}^{2} }$

$= 61 - \frac{1}{25}$

$= \frac{1525 - 1}{25}$

$= \frac{1524}{25}$

$= 60,96$

Att. Makaveli1996