D Question 4 Use the Cosine Graphing Tool to create this shape. Setting Scrolling n forward, each shaded sector 11 pts r = 7- 6Cos(20/3) 1 turning on the y-axis and scrolling S we see that one waveform Scrolling S forward, enter these 9 points in order. Point # 2 3 4 6 7 8 9 has full period 3pi 3pi/4 and quarter period on the second waveform has size 11/ ( Continue using simplified positive radians for angles, entering 81/4 or 671/3 as 2pi with no spaces. ) end