Use cofunction identities and trig identities to find the indicated trig functions

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main goal of the problem discussed in the first section?
To find the secant of 30 degrees
To find the sine of 30 degrees
To find the tangent of 30 degrees
To find the cosine of 30 degrees
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which identity is NOT applicable for finding the cosine of 30 degrees in the first section?
Quotient identities
Pythagorean identities
Cofunction identities
Reciprocal identities
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the unit circle, what does the sine of an angle represent?
The radius
The angle itself
The Y coordinate
The X coordinate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the tangent of an angle represented in terms of sine and cosine?
Cosine divided by sine
Cosine minus sine
Sine divided by cosine
Sine multiplied by cosine
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final value of the cosine of 30 degrees after solving the equation?
1/sqrt 3
sqrt 3 / 3
sqrt 3 / 2
1/2
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