Asked by Shawn

Choose and use a value for Thea on the interval 0<Thea<pi/2 to show that the equation is an identity. Round your answer to three decimal places.
Answered by oobleck
no equation shown, but finding it is true for a single value of θ does not prove it is an identity.

However, if it is untrue for any chosen value of θ, then it is certainly NOT an identity.