Here are the answers to your homework assignment:

Working with the Unit Circle Exercises - Answers

1. (i) 7π/3

(ii) 1

(iii) I

(iv) (1/2, √(3)/2)

2. (a) (i) 8π/3 (ii) 1 (iii) II (iv) (-1/2, √(3)/2)

(b) (i) 11π/3 (ii) 1 (iii) IV (iv) (1/2, -√(3)/2)

(c) (i) -17π/3 (ii) 2 (iii) I (iv) (-1/2, √(3)/2)

3. (i) 510°

(ii) 1

(iii) II

(iv) (-√(3)/2, 1/2)

4. (a) (i) 1350° (ii) 3 (iii) on negative y-axis (iv) (0, -1)

(b) (i) -2250° (ii) 6 (iii) IV (iv) (√(2)/2, -√(3)/2)

(c) (i) 1590° (ii) 4 (iii) II (iv) (-√(3)/2, 1/2)

5. (a) 1 (b) 1 (c) 1 (d) 1

6. ???

7. (a) yes, because (3/5)

^{2}+ (4/5)

^{2}= 1 (b) no (c) yes(d) yes

## 1 comment:

Soooo, Mr.K, when are you going to upload the answers to that "Working With the Unit Circle" Assignment?

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