1)
a = 3.3
b = 1.1
φ = 3.3/1.1 = 3
2)
b = 2.1
φ = 3.3/2.1 = 1.5714
3)
b = 3.1
φ = 3.3/3.1 = 1.06
4.7m questions
6.1m answers