Urgent! I need help with Roman numerals II, IV, and V. I have no idea how to sol

Question

Urgent! I need help with Roman numerals II, IV, and V. I have no idea how to solve or where to begin. Section 2.2 I. Name the quadrant that contains the terminal point of each arc. ST 13 2. 3. 15 19m 12 13 6, 7. 2.5 9. 7.24 Name two positive arcs and two negative arcs that are coterminal with the 8. 1.3 10. -2.18 II. given arc. 3m Sr 2. Determine whether the point!-7 lies on the unit circle. IfPI- the y-coordinate. If P1 the y-coordinate. III. [V. ?! is a point on the unit circle and Pis in Quadrant III, find V. ,? I is a point on the unit circle and P is in Quadrat IV, find

Explanation / Answer

II) 1 ) 3pi/7

positive coterminal angle is

3pi/7 + 2pi = 18pi/7

3pi/7 + 4pi = 31pi/7

negative coterminal angle is

3pi/7 - 2pi = -11pi/7

3pi/7 - 4pi = -25pi/7

2) -5pi/6

positive coterminal angles are

-5pi/6 + 2pi = 7pi/6

-5pi/6 + 4pi = 19pi/6

negative coterminal angle are

-5pi/6 - 2pi = - 17pi/6

-5pi/6 - 4pi = -29pi/6

IV) hypotenuse = 1 (unit circle)

base = sqrt 3/2

perpendicular = sqrt (1 - 3/4) = 1/2

hence point P is ( - sqrt 3/2 , -1/2 )

V) hypotenuse = 1

base = sqrt 2 /2

perpendicular = sqrt (1 - 2 / 4)

= sqrt 2 / 2

hence, point P is ( sqrt 2/2 , - sqrt 2/2 )

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