resolva as expressões 64 ¹/³ + 81¹/² - 20
Soluções para a tarefa
Respondido por
6
![= 64^{ \frac{1}{3}}+81^{ \frac{1}{2}}-20\\ = \sqrt[3]{64}+\sqrt{81}-20\\ = 4 + 9 - 20 \\= -7](https://tex.z-dn.net/?f=%3D+64%5E%7B+%5Cfrac%7B1%7D%7B3%7D%7D%2B81%5E%7B+%5Cfrac%7B1%7D%7B2%7D%7D-20%5C%5C+%3D+%5Csqrt%5B3%5D%7B64%7D%2B%5Csqrt%7B81%7D-20%5C%5C+%3D+4+%2B+9+-+20+%5C%5C%3D+-7 "= 64^{ \frac{1}{3}}+81^{ \frac{1}{2}}-20\\ = \sqrt[3]{64}+\sqrt{81}-20\\ = 4 + 9 - 20 \\= -7")
Perguntas interessantes