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What is the exact value of each of the following trig expressions? Homework Help ✎

  1. sin()

    Recall your unit circle, or the graph of f(x) = sinx.

    Which one?

  2. tan()

    Now simplify!

  3. sec()

    Now simplify!

  4. csc(π)

    Careful! sinπ = 0. What does that mean about the reciprocal of sinx