
Trigonometric Concepts and Functions

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard

Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the identity for the sine of a sum, such as sin(a + b)?
sin(a) + sin(b)
cos(a)sin(b) - sin(a)cos(b)
cos(a) + cos(b)
sin(a)cos(b) + cos(a)sin(b)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you change the phase of a sine function to move it 90 degrees to the right?
Divide x by 90
Subtract 90 from x
Multiply x by 90
Add 90 to x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an auxiliary angle in the context of trigonometric functions?
An angle that is multiplied by the main angle
An angle that is subtracted from the main angle
An additional angle added to the main angle
An angle that is always zero
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the sum of two wave functions equate to?
A single wave function with a different amplitude and phase
A constant value
A single wave function with the same amplitude and phase
Two separate wave functions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the triple line symbol mean in trigonometry?
Less than
Always equal to
Approximately equal to
Greater than
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When expanding trigonometric expressions, why is it useful to add coefficients like 1?
To make the expression longer
To change the phase of the function
To simplify the expression
To make the sine and cosine terms more obvious
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of equating coefficients in trigonometric expressions?
To determine the amplitude and phase
To simplify the expression
To eliminate variables
To find the value of x
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