Answer:
Explanation:
Remark
The moment you put Tan(45) in the choices, non of the other choices can compete.
Tan(45) = 1
Sin(a) or cos(a) are all less then one except when a = 0 or 90. Even then they can only have a value of 1. Since none of the angles = 0 or 90 then the largest value is Tan(45) = 1.