All High School Math Resources
Example Questions
Example Question #1 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
If you examine the unit circle, you'll see that the the
. If you were to graph a sine function, you would also see that it crosses through the point .Example Question #2 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
If you look at the unit circle, you'll see that
. You can also think of this as the cosine of , which is also .Example Question #1 : Using The Unit Circle
What is
?
Possible Answers:
Correct answer:
Explanation:
If you look at the unit circle, you'll see that
. You can also think of this as the sine of , which is also .Example Question #3 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
Using the unit circle,
. You can also think of this as the cosine of , which would also be .Example Question #3 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
Using the unit circle, you can see that
. If you were to graph a cosine function, you would also see that it crosses through the point .Example Question #4 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
Using the unit circle,
. You can also think of this as the sine of , which would also be .Example Question #4 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
Using the unit circle, you can see that the
. Since the angle is in Qudrant II, sine is positive and cosine is negative.Example Question #2 : The Unit Circle And Radians
What is
?
Possible Answers:
Correct answer:
Explanation:
Using the unit circle,
. You can also think of this as the sine of , which would also be .Example Question #21 : Graphing The Sine And Cosine Functions
What is
?
Possible Answers:
Correct answer:
Explanation:
If you examine the unit circle, you'll see that that
.Example Question #22 : Graphing The Sine And Cosine Functions
What is
?
Possible Answers:
Correct answer:
Explanation:
If you examine the unit circle, you'll see that the value of
. You can also get this by examining a cosine graph and you'll see it crosses the point .
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