
Complementary Angles and Trigonometric Expressions

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Aiden Montgomery
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of this lesson on trigonometric expressions?
Learning about tangent and cotangent functions
Simplifying expressions using complementary angles
Exploring the unit circle
Understanding the Pythagorean theorem
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If alpha and beta are complementary angles, which of the following is true?
Cosine of alpha equals cosine of beta
Sine of alpha equals cosine of beta
Sine of alpha equals sine of beta
Sine of alpha equals tangent of beta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in simplifying trigonometric expressions?
Use the Pythagorean identity
Convert to radians
Look for complementary angles
Apply the angle sum identity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example problem, what is the simplified form of sine of alpha plus cosine of beta divided by cosine of beta?
1
2
Tangent of alpha
Sine of beta
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final simplified form of sine of alpha plus cosine of beta divided by cosine of alpha?
Sine of alpha
2 times the tangent of alpha
Tangent of beta
Cosine of alpha
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In solving for x, what equation is set up to find the complementary angles?
x + 13 = 2x - 19
x + 13 + 2x - 19 = 90
x + 13 = 90
2x - 19 = 90
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of x when solving the equation sine of (x + 13) equals cosine of (2x - 19)?
45
32
60
90
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