Respostas

2013-04-13T13:28:54-03:00

(2/3) * 8^(2/3) - (2/3) * 8^(-2/3)

(2/3) .[8^(2/3) - 8^(-2/3)

(2/3) .(3^√8² - 3^√8^(-2)

(2/3) .(4 - 3^√1/8²)

(2/3) .(4 - 1/4)

(2/3) .(16/4 - 1/4)

(2/3) *(15/4)

(30/12)

(15/6)

2,5

letra a) 2,5

 

2 5 2