L lewch45 New member Joined Sep 29, 2005 Messages 35 Mar 2, 2006 #1 Can someone help me with this one..... Find the exact value of sin, cos and tan of (theta/2) given the following info: sin theta = -9/41 Theta is in Quadrant IV. Any help would be greatly appreciated. Thanks in advance!!!
Can someone help me with this one..... Find the exact value of sin, cos and tan of (theta/2) given the following info: sin theta = -9/41 Theta is in Quadrant IV. Any help would be greatly appreciated. Thanks in advance!!!
R royhaas Full Member Joined Dec 14, 2005 Messages 832 Mar 2, 2006 #2 In quadrant 4 the cosine will be positive and the angle will be bigger than \(\displaystyle 3\pi/2\). Use the usual identities to determine the rest.
In quadrant 4 the cosine will be positive and the angle will be bigger than \(\displaystyle 3\pi/2\). Use the usual identities to determine the rest.
