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Trigonometric Identities and Simplifications
Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in simplifying trigonometric expressions?
Use the Pythagorean identities
Convert to sines and cosines
Use the angle sum identities
Convert to tangent and cotangent
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the expression tangent x times cosine x simplify to?
Cosine x
Sine x
Tangent x
Cotangent x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is used to simplify tangent x in the expression tangent x times cosine x?
Tangent x = 1 / cosine x
Tangent x = sine x / cosine x
Tangent x = cosine x / sine x
Tangent x = 1 / sine x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the expression cosecant x times cosine x simplify to?
Secant x
Cotangent x
Tangent x
Sine x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is used to express cosecant x in the expression cosecant x times cosine x?
Cosecant x = 1 / cosine x
Cosecant x = sine x / cosine x
Cosecant x = cosine x / sine x
Cosecant x = 1 / sine x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the expression sine x times cotangent x simplify to?
Secant x
Tangent x
Cosine x
Sine x
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is used to express cotangent x in the expression sine x times cotangent x?
Cotangent x = sine x / cosine x
Cotangent x = 1 / sine x
Cotangent x = cosine x / sine x
Cotangent x = 1 / cosine x
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