
Trigonometric Identities and Functions

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

Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step suggested in the video to solve the initial trigonometric equation?
Multiply by the conjugate of the denominator
Convert to radians
Add the fractions directly
Use a calculator
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What identity is used to simplify 1 - sin²(theta)?
sin²(theta)
tan²(theta)
cos²(theta)
sec²(theta)
Tags
CCSS.HSF.TF.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which quadrants is cosine positive?
Second and third
First and second
First and fourth
Third and fourth
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What substitution is made for secant squared X in the second equation?
tan²(X) + 1
sin²(X) + 1
cot²(X) + 1
cos²(X) + 1
Tags
CCSS.HSF.TF.A.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which reference angle is associated with a tangent value of -1?
60 degrees
90 degrees
30 degrees
45 degrees
Tags
CCSS.HSF.TF.B.7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What tool is suggested for solving tan(X) = 3?
Ruler
Scientific calculator
Protractor
Graphing calculator
Tags
CCSS.HSF.TF.C.9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What identity is used to replace sin(2X) in the double angle equation?
1 - 2 sin²(X)
2 sin(X) cos(X)
2 cos²(X) - 1
sin²(X) - cos²(X)
Tags
CCSS.HSF.TF.C.9
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