I need help on my math homework?

Question

The problem is

cosx - sinx = -1

Solve for x

Answer 1

Nobody's going to do it for you, so here's the help you requested: Get out your notes and run through the steps that your teacher has given you. You already know -1, so go back step by step until you discover what all the others are. then x will be obvious.

You might be surprised to find that you can do this. If you haven't been paying attention and didn't learn the steps, confess to your teacher and have her or him show you. Then do it.

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