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Homework Help: Find dt/dtheta

  1. Jun 12, 2012 #1
    How do I most easily find dt/dθ, when they are related by the following equation:

    t2-1 = 2√(z2-1)exp(iθ)(z+√(z2-1)cosθ)

    and t = z + √(z2-1)exp(iθ)

    I could find t and then differentiate, but with all the square roots it's gonna be a mess. Also my teacher seemed to think it was easy, so therefore I ask what else can be done in a situation like this.

  2. jcsd
  3. Jun 12, 2012 #2


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    Science Advisor

    I'm not clear what you mean here. You have two different equations defining s as a function of [itex]\theta[/itex] (I presume z is to be treated as a constant.). And they are NOT equivalent.
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