2(cos 60)^2 + 4 (sec 30)^2 – (tan 45) / (sin 30)^2 + (cos 30)^2

= 2(1/2)² + 4(2/√3)² – 1 / (1)
= 2(1/4) + 4(4/3) – 1
= 1/2 + 16/3 – 1
= 3/6 + 32/6 – 6/6
= 29/6