Which equation represents a tangent function with a domain of all Real numbers such that x is not equal to pi over 4 plus pi over 2 times n comma where n is an integer?

f (x) = tan(2x – π)
g(x) = tan(x – π)
h of x equals tangent of the quantity x minus pi over 2 end quantity
j of x equals tangent of the quantity x over 2 minus pi end quantity