Knowing the Unit Circle

$$\left(-\frac{\sqrt[]{2}}{2},\ \frac{\sqrt[]{2}}{2}\right)$$  

$$\left(-\frac{\sqrt[]{2}}{2},\ -\frac{\sqrt[]{2}}{2}\right)$$  

$$\left(-\frac{\sqrt[]{3}}{2},\ -\frac{\sqrt[]{2}}{2}\right)$$  

$$\left(\frac{\sqrt[]{2}}{2},\ -\frac{\sqrt[]{2}}{2}\right)$$  

I

II

III

IV

1

2

$$\frac{1}{2}$$  

0

(1, 1)

(-1, 0)

$$\left(\frac{1}{2},\ 0\right)$$  

$$\left(\frac{\sqrt[]{2}}{2},\ \frac{\sqrt[]{2}}{2}\right)$$  

$$\left(\frac{-\sqrt[]{3}}{2},\ \frac{1}{2}\right)$$  

(0, 1)

(1, 0)

(0, -1)

(-1, 0)

True

False

$$45\degree$$  

$$180\degree$$  

$$30\degree$$  

$$90\degree$$  

$$300\degree,\ \frac{5\pi}{3}$$  

$$315\degree,\ \frac{7\pi}{4}$$  

$$-60\degree,\ -\frac{\pi}{3}$$  

$$-300\degree,\ -\frac{5\pi}{3}$$  

I

II

III

IV

$$240\degree,\ \frac{4\pi}{3}$$  

$$225\degree,\ \frac{5\pi}{4}$$  

$$-60\degree,\ -\frac{\pi}{3}$$  

$$270\degree,\ \frac{3\pi}{2}$$