Question

Calculando-se (1/2)^3 + (1/4)^2 -2^-3 +16^0 é:
(a) 33/16
(b) 17/16
(c) 15/16
(d) -15/16
(e) -17/16

Answer 1

( 1/2)³ =  1/2 * 1/2 * 1/2 = 1/8 ***
( 1/4)² = 1/4 * 1/4 = 1/16 ***
( 2 )⁻³  = ( 1/2)³  = 1/2 * 1/2 * 1/2 = 1/8 ***
( 16 )⁰ = 1 ***

1/8 + 1/16 - 1/8 + 1/1  =
mmc = 16
( 2 + 1  - 2 + 16)/16 = 17/16  (b )