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Worksheets

Unit Circle

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

Evaluate: sin(210°)\sin\left(210\degree\right)

a)

12\frac{1}{2}

b)

12-\frac{1}{2}

c)

32\frac{\sqrt[]{3}}{2}

d)

32-\frac{\sqrt[]{3}}{2}

2.

Evaluate: tan(π)\tan\left(-\pi\right)

a)
undefined
b)
0
c)
1
d)
-1
3.

Evaluate: sin(π2)\sin\left(\frac{\pi}{2}\right)

a)

0

b)

22\frac{\sqrt[]{2}}{2}

c)

-1

d)
1
4.

Evaluate: cos(4π3)\cos\left(\frac{4\pi}{3}\right)

a)

32-\frac{\sqrt[]{3}}{2}

b)

32\frac{\sqrt[]{3}}{2}

c)

12\frac{1}{2}

d)

12-\frac{1}{2}

5.

Evaluate: cos(7π4)\cos\left(\frac{7\pi}{4}\right)

a)

32-\frac{\sqrt[]{3}}{2}

b)

32\frac{\sqrt[]{3}}{2}

c)

22\frac{\sqrt[]{2}}{2}

d)

22-\frac{\sqrt[]{2}}{2}

6.

Evaluate: cos(315°)\cos\left(-315\degree\right)

a)

32\frac{\sqrt[]{3}}{2}

b)

22\frac{\sqrt[]{2}}{2}

c)

22-\frac{\sqrt[]{2}}{2}

d)

32-\frac{\sqrt[]{3}}{2}

7.

Evaluate: cos(π)\cos\left(\pi\right)

a)

12\frac{1}{2}

b)

0

c)
-1
d)
1
8.

Evaluate: sin(5π3)\sin\left(\frac{5\pi}{3}\right)

a)

22-\frac{\sqrt[]{2}}{2}

b)

12-\frac{1}{2}

c)

32-\frac{\sqrt[]{3}}{2}

d)

32\frac{\sqrt[]{3}}{2}

9.

Evaluate: sin(0)\sin\left(0\right)

a)

0

b)

1

c)

-1

d)

undefined

10.

Evaluate: cos(360°)\cos\left(360\degree\right)

a)

0

b)

-1

c)

1

d)

und

11.

Evaluate: tan(7π4)\tan\left(\frac{7\pi}{4}\right)

a)
-1
b)
1
c)

22\frac{\sqrt[]{2}}{2}

d)
undefined
12.

Evaluate: csc(135°)\csc\left(135\degree\right)

a)

22\frac{\sqrt[]{2}}{2}

b)

22-\frac{\sqrt{2}}{2}

c)

2\sqrt[]{2}

d)

2-\sqrt[]{2}

13.

Evaluate: cot(300°)\cot\left(-300\degree\right)

a)

3\sqrt[]{3}

b)

2 33\frac{2\ \sqrt[]{3}}{3}

c)

33\frac{\sqrt[]{3}}{3}

d)

 3-\ \sqrt[]{3}

14.

Evaluate: sec(3π2)\sec\left(\frac{3\pi}{2}\right)

a)
0
b)
undefined
c)
1
d)
-1
15.

Which quadrant is (2π3)\left(-\frac{2\pi}{3}\right) in?

a)

Quadrant 1

b)

Quadrant 2

c)

Quadrant 3

d)

Quadrant 4

16.

How many radians is two complete rotations of the unit circle?

a)

π\pi

b)

2π2\pi

c)

4π4\pi

d)

720720

17.

tan(θ)\tan\left(\theta\right) is positive in which quadrants? (Select all that apply)

a)

Quadrant 1

b)

Quadrant 2

c)

Quadrant 3

d)

Quadrant 4

18.

sin(4π3)\sin\left(\frac{4\pi}{3}\right) is equivalent to which expression?

a)

cos(5π6)\cos\left(\frac{5\pi}{6}\right)

b)

csc(4π3)\csc\left(\frac{4\pi}{3}\right)

c)

cot(3π4)\cot\left(\frac{3\pi}{4}\right)

d)

None of these

19.

sin(7π6)\sin\left(\frac{7\pi}{6}\right) is equivalent to which expressions? (Hint: There are multiple answers!)

a)

cos(3π4)\cos\left(\frac{3\pi}{4}\right)

b)

cos(2π3)\cos\left(\frac{2\pi}{3}\right)

c)

sin(11π6)\sin\left(\frac{11\pi}{6}\right)

d)

- sin(210°)\sin\left(210\degree\right)