Trig Substitution with Radicals
Interactive Video
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Myra Deister
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first example, what is x equal to?
4 tan θ
4 cos θ
4 sec θ
4 csc θ
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will be the result of substituting x = 4 sec θ into √(x² - 16)?
√(16 sec² θ - 16)
√(16 tan² θ - 16)
√(16 cos² θ - 16)
√(16 sin² θ - 16)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which trigonometric identity can be used to substituted for sec² θ - 1?
sin² θ + cos² θ = 1
tan² θ + 1 = sec² θ
csc² θ - 1 = cot² θ
sec² θ - tan² θ = 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will be the result of substituting x = 5 cot θ into √(x² + 25)?
√(25 cot² θ + 25)
√(25 tan² θ + 25)
√(25 sec² θ + 25)
√(25 csc² θ + 25)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will be the final result of simplifying √(x² + 25) when x = 5 cot θ?
5 sin θ
5 cos θ
5 tan θ
5 csc θ
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