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Posted by on Sunday, March 7, 2010 at 8:23pm.

Where does the graph of y = tan theta intersects the graph of y = -1.

  • Trigonometry - , Sunday, March 7, 2010 at 8:51pm

    tan 45 degrees = 1, now worry about the quadrant (x and y different signs)
    You are asking when tan theta = -1
    that is at 90+45 degrees
    and at 270 + 45 degrees

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