P Q N B O R MThe previous diagram shows a portion of the unit circle containing two angles, a and [3. Note that [3 is not in standard position. The dashed line QN is parallel to the horizontal axis. 1. Find the lengths of PR and OR in terms of the angles a and [3. Next, we will find these two lengths using a different method. 2. Find the angles LONQ and LNPQ. In this notation, the middle letter is the vertex where the angle is located. 3. Find the lengths of 0N and PN in terms of the angle [3. 4. Find the length of PQ. 5. Find the length of QR. Note that this is the same as the length of NM. 6. Find the length of 0M. 7. Find the length of RM. Note that this is the same as the length of QN. 8. What formula can you write down by noting that PR = QR +PQ? 9. What formula can you write down by noting that OR = 0M RM