The Math Sorcerer1,624 views. 1:45.
Find the terminal point on the unit circle determined by - /2. The terminal point determined by - /2 is (0,-1). Solution: The diagram looks like: t.=.-/2. Example 4: Find the terminal point on the unit circle determined by 3 /2. You can keep on going with this simple formula. Since cos(2π 4) = cos(π 2)= 0, then if x= cos(π 4), then 2x2−1 = 0, so x= ± √2 2, and again from looking at the unit circle we conclude that cos(π 4) = √2 2.
You know that cos(2π 2) = cosπ = − 1, so if x = cosπ 2, then 2x2− 1= −1, so x = 0= cosπ 2. Solution: Looking at the diagram. How to Find the Terminal Point given the Vector and Initial Point - Duration: 1:45. The terminal point … t.=.3 /2.