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Math Help - Equation help

  1. #1
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    Equation help

    Hey I just need help figuring these out.

    1.Solve the following equation in the interval [0, 2pi].


    2. Solve the equation
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by badandy328 View Post
    Hey I just need help figuring these out.

    1.Solve the following equation in the interval [0, 2pi].


    2. Solve the equation
    For the first, let x = cos(t). Solve the quadratic for x, then take the inverse cosine.

    For the second, multiply both sides of the equation by (x + 1)(x - 2).

    -Dan
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  3. #3
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    1) On the first, would you consider factoring or the quadratic formula if it said 2x^{2} - x - 1 = 0?

    2) Say x \neq -1 and x \neq -2 and add the fractions and solve.
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