USING REFERENCE ANGLES TO FIND TRIG VALUES WORKSHEET

Problem 1 :

tan -𝜋2

Solution

Problem 2 :

csc 3𝜋2

Solution

Problem 3 :

csc 240°

Solution

Problem 4 :

sec -330°

Solution

Problem 5 :

sin 120°

Solution

Problem 6 :

csc -240°

Solution

Problem 7 :

tan 240°

Solution

Problem 8 :

cos -210°

Solution

Problem 9 :

cot 0°

Solution

Problem 10 :

tan -11𝜋6

Solution

Problem 11 :

sec 210°

Solution

Problem 12 :

cot -150°

Solution

Problem 13 :

sin -60°

Solution

Problem 14 :

sec 45°

Solution

Problem 15 :

cos 180°

Solution

Problem 16 :

sin -5𝜋6

Solution

Problem 17 :

cot -5𝜋3

Solution

Problem 18 :

sec 7𝜋4

Solution

Problem 19 :

cot -4𝜋3

Solution

Problem 20 :

cot 𝜋6

Solution

Answer Key

1) Undefined

2)  -1

3)  -2/√3

4)  2√3/3

5) √3/2

6)  -2√3/3

7)  √3

8) -√3/2

9)  undefined

10)  -√3/3

11)  -2√3/3

12)  -√3

13)  √3/2

14)  √2

15)  -1

16)  1/2

17)  -1/√3

18)  √2

19)  1/√3

20)  √3

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