Given a = 3 sec2 θ and b = 3 tan2 θ - 2. The value of (a - b) is :
1
2
3
5
a - b = 3 sec2 θ - (3 tan2 θ - 2)
= 3 sec2 θ - 3 tan2 θ + 2
= 3(sec2 θ - tan2 θ) + 2
= 3(1) + 2
= 3 + 2
= 5.
Hence, Option 4 is the correct option.
