Hyperbola

Consider the following statements in respect of the hyperbola

1. The two foci are independent of θ.
2. The eccentricity is secθ.
3. The distance between the two foci is 2 units.

How many of the statements given above are correct?

What is the distance between the two foci of the hyperbola 25x² – 75y² = 225?

What is the distance between the foci of the hyperbola x² - 4y² = 1?

If any point on a hyperbola is (3 tan θ, 2 sec θ), then what is the eccentricity of the hyperbola?