math

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list the possible valures of sin a if a is a quadrental angle

  • math -

    Wow, after 45 years of teaching math I just learned something new.
    I had never heard of a quadrantal angle, had to look it up

    http://www.mathwords.com/q/quadrantal_angle.htm

    take the sign of each of those angles and see what you get.

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