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Need some Calculus Help

  1. Sep 13, 2006 #1
    Hello everyone!

    I'm entering my first year of university calculus, and I must say, I was never really good with math. So I have a few questions. This will seem pathetic to some of the math wizzards!

    1.) Show that the identity 1+cot^2 ϑ = csc^2 ϑ

    follows from

    sin^2 ϑ + cos^2 ϑ = 1.

    2.) Solve sec^2 x = √3 tan x + 1 on [0, π)

    Thanks for your help!
  2. jcsd
  3. Sep 13, 2006 #2


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    Hi chowder,

    you must show some work to get help.

    what have you tried? what are your thoughts, etc.
  4. Sep 14, 2006 #3


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    In case you have no idea to start off the problem, the first problem can be done by relating the cot, and csc functions to the sin, and cos functions, since you need to use the Pythagorean Identity to prove this one.
    For the second problem, can sec2x be rewritten in terms of tan(x)?
    [tex]\ces ^ 2 x = \frac{1}{\cos ^ 2 x} = \frac{\sin ^ 2 x + \cos ^ 2 x}{\cos ^ 2 x} = ...[/tex]
    Ok, can you go from here? :)
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