When you graph, don't try to plot loads of points. Note that the cosine is at y = 1 when x = 0 and 2Ï; at y = 0 for x = Ï/2 and 3Ï/2, and at y = â1 for x = Ï. Plot these five interesting points, and then fill in the curve.
Transesophageal echocardiogram. A transesophageal echocardiogram, or TEE (TOE in the United Kingdom, reflecting the spelling transoesophageal), is an alternative way to perform an echocardiogram. A specialized probe containing an ultrasound transducer at its tip is passed into the patient's esophagus.
BID, also b.i.d. or BD, is a medical abbreviation for bis in die, meaning to give medication twice a day. TID, also t.i.d., is a medical abbreviation for ter in die, meaning to give medication three times a day. QID also q.i.d, is a medical abbreviation which means to give the medication four times a day. PRN is a medical abbreviation for pro re nata, meaning to give medication as the situation demands or according to need. Qxh or Qxd once every x hours or once every x days. More abbreviations here. Notes at the link above offer a good formula for calculating changing the number of times a day dosing.