What is the value of which satisfies the equation cos θ + tan θ = 1

What is the value of which satisfies the equation cos θ + tan θ = 1?

  1. 30°
  2. 45°
  3. 60°

Answer

You can plug in the options in the equation and check if the option is satisfying cos θ + tan θ = 1

When θ = 0°, cos 0° + tan 0° = 1

The correct option is A.