Respostas

A melhor resposta!
2013-07-21T20:37:18-03:00
√(((2^2n+ 2^(2n+2))/5) )
√(((2^2n+ 2^2n.2^2))/5) )
= √(((2^2n+ 2^2n.4))/5) )
= √((2^2n( 1 + 4))/5) )
= √((2^2n( 5))/5) )
= √(2^2n) = √(2^n)^2 = 2^n

5 4 5