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pre calc need help

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Find the indicated function value. Do not use a calculator.

tan 180 degrees

  • pre calc need help -

    think of a rotating arm of length 1 rotating about the origin (0,0)

    at 180º the end of the arm will land on (-1,0)

    tan (theta) = y/x
    tan 180 = 0/-1 = 0

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