Evaluating Trig. Functions using the Unit Circle

Evaluating Trig. Functions using the Unit Circle

10th - 12th Grade

30 Qs

quiz-placeholder

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Evaluating Trig. Functions using the Unit Circle

Evaluating Trig. Functions using the Unit Circle

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Medium

CCSS
HSF.TF.A.2, HSF.TF.A.4, HSF.TF.A.1

+3

Standards-aligned

Created by

Mrs. Brown

Used 118+ times

FREE Resource

About this resource

This quiz focuses on evaluating trigonometric functions using the unit circle, a fundamental topic in high school trigonometry appropriate for grades 11-12. The questions systematically assess students' ability to find exact values of sine, cosine, tangent, secant, cosecant, and cotangent functions for special angles measured in both radians and degrees. Students must demonstrate mastery of the unit circle's key reference angles (π/6, π/4, π/3, π/2, and their multiples) and understand how to determine function values in all four quadrants. The quiz requires knowledge of angle conversions between radians and degrees, the signs of trigonometric functions in different quadrants, and the relationships between co-function pairs. Students need to recognize patterns for angles that exceed 2π or 360°, apply reference angle concepts, and identify when functions are undefined due to division by zero. Created by Mrs. Brown, a Mathematics teacher in US who teaches grade 10, 12. This comprehensive assessment serves multiple instructional purposes in the trigonometry classroom, effectively supporting both formative and summative evaluation of student understanding. The quiz works excellently as a review activity before major tests, allowing students to practice essential unit circle skills in a structured format. Teachers can assign this as homework to reinforce classroom learning or use it as a warm-up activity to activate prior knowledge before introducing more complex trigonometric concepts. The variety of question types—from basic function evaluation to quadrant analysis—makes it ideal for differentiated instruction and helps identify specific areas where students need additional support. This assessment aligns with Common Core standards HSF-TF.A.2 (explaining unit circle relationships) and HSF-TF.A.3 (using special triangles to determine trigonometric ratios).

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value.


 sin(π4)\sin\left(\frac{\pi}{4}\right)  

 22\frac{\sqrt{2}}{2}  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 00  

Tags

CCSS.HSF.TF.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value.

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

 00  

undefined

1

-1

Tags

CCSS.HSF.TF.A.2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value.


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


 12-\frac{1}{2}  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 32-\frac{\sqrt{3}}{2}  

Tags

CCSS.HSF.TF.A.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value.
 tan(7π4)\tan\left(\frac{7\pi}{4}\right) 

-1

1

 3-\sqrt{3}  

undefined

Tags

CCSS.HSF.TF.A.2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value.
 cos(4π3)\cos\left(\frac{4\pi}{3}\right)  

 12-\frac{1}{2} 

 32\frac{\sqrt{3}}{2}  

 12\frac{1}{2}  

 32-\frac{\sqrt{3}}{2}  

Tags

CCSS.HSF.TF.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value

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

 22-\frac{\sqrt{2}}{2}  

-1

1

 2-\sqrt{2}  

Tags

CCSS.HSF.TF.A.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value.
 sin(7π6)\sin\left(\frac{7\pi}{6}\right)  

 12\frac{1}{2}  

 12-\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 32-\frac{\sqrt{3}}{2}  

Tags

CCSS.HSF.TF.A.2

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