Signs that your supervisor does not trust you

BB2: Do you know how to solve equation xyz? (1st sign: asking you a question)

Me: Yes, I know how to solve it.

BB2: You use xxx method to solve equation xyz. (2nd sign: giving you answers to the same question that he had just asked)

Me: (Didnt I just told him that I know how to solve this?)

BB2: Do it and show it to me later so I will know that you don't make any mistake. (3rd sign: wants proof that you can do it)