Question

o valor numérico da expressão √1/4÷3/2+(1/4)^2.√64/9 é:
(A) 1/5
(B) 1/2
(C) 1/4
(D) 1/3

Answer 1

√1/4÷3/2+(1/4)^2.√64/9 

(1/2)÷(3/2)+(1/4)^2.√64/9 

(1/2)÷(3/2)+(1/16).√64/9 

(1/2)÷(3/2)+(1/16).(8/3)

(1/2)*(2/3)+(1/16).(8/3)

1/3 +(1/16)*(8/3)

1/3 +1/6

=2/6+1/6 =3/6 =1/2