Question

O valor de ( 1/2 )-¹ + ( 1/4 ) -² é: * 5 pontos a) 1/4 b) 18 c) 5/2 d) - 1/2

Answer 1

Oie, Td Bom?!

■ Resposta: Opção B.

$= ( \frac{1}{2} ) {}^{ - 1} + ( \frac{1}{4} ) {}^{ - 2}$

$= 2 + 4 {}^{2}$

$= 2 + 4 \: . \: 4$

$= 2 + 16$

$= 18$

Att. Makaveli1996