Recent content by Wessssss

  1. W

    How to Solve a Trig Equation for x with Cosine and Sine Terms

    thank you
  2. W

    How to Solve a Trig Equation for x with Cosine and Sine Terms

    Homework Statement cos^2x+2sin^2x=-1 Solve for x Homework Equations The Attempt at a Solution I don't really know how to start. I know cos^2x+sin^2x=1 but I don't think I can apply that with the 2 thrown in there.
  3. W

    Intermediate Value Theorem and Rolle's Theorem to show root

    Homework Statement Use the Intermediate Value Theorem and Rolle's Theorem to show that f(x) = 2x-2-cosx has exactly one root. Homework Equations The Attempt at a Solution I'm not really sure what the question is asking for. the theorems I believe are to prove the existence of a...