Cot θ = 1/Tan θ = Cos θ/Sin θ = - SQRT of 15/7 =
You have received many replies to your numerous trig questions, and have not responded to a single one of them.
How do we know that you are even reading the responses, and if so, if they are of any help to you.
What is your main difficulty with these questions?
What are you asking in the above question?