Question

cos² 60°+sec²30°+tan² 45°

Answer 1

=(1/2)^2+(2/root3)^2+(1)^2
=1/4+4/3+1
=3+16+12/12
=31/12

Answer 2

cos²60°=1/2)²
sec²30°=2/√3)²
tan²45°=1²

1/4+4/3+1
3+16+12/12
31/12