Question

Calcule em seu caderno o valor numerico de√(3\4 - x) +√2x - 3\2√1-4x para x=1\12

Answer 1

Resolvendo: 

f (x) = √(3/4-x)+√2x-3/2*√1-4x
f (1/2) = √(3/4-1/2)+√2*1/2-3/2*√1-4*1/2
f (1/2) = √(1/4) + √1 - 3/2 * √1/8
f (1/2) = 1/2 + 1 - 3/2 * 0,354
f (1/2) = 0,969