1)    how do you use the calculator to convert to and from decimal degrees to degrees, minutes,  seconds? 2)    what does it mean to the graph of a trig function when the period is changed? 3)    what does zoom 7 mean and how do you use it on the calculator? 4)    what is the length of the third side of a right triangle if the shortest side is 1 and the hypotenuse  is  2? 5)    which quadrants have positive sine values?