What is the sine of $$\frac{\theta}{2}$$ ?

The sine of $$\frac{\theta}{2}$$ is equal to $$\frac{1}{2}$$ when $$\theta = 90°$$ .

What is the sine of $$\frac{\theta}{2}$$ when $$\theta = 180°$$ ?

The sine of $$\frac{\theta}{2}$$ when $$\theta = 180°$$ is 1.

What is the tangent of $$\frac{\theta}{4}$$ ?

The tangent of $$\frac{\theta}{4}$$ is equal to 1 when $$\theta = 90°$$ .

What is the radian measure that corresponds to 180 degrees?

The radian measure that corresponds to 180 degrees is $$\theta$$ .

What is the radius of a unit circle?

The radius of a unit circle is 1.

What is the cosine of 270 degrees?

The cosine of 270 degrees is 0.

What is the radian measure for a half circle?

The radian measure for a half circle is $$\theta$$ .

Unit Circle Practice Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the definition of a unit circle?

Back

A unit circle is a circle with a radius of 1, centered at the origin (0,0) in the coordinate plane.

2.

FLASHCARD QUESTION

Front

What is the radian measure for a full circle?

Back

Tags

CCSS.HSF.TF.A.1

3.

FLASHCARD QUESTION

Front

What is the relationship between degrees and radians?

Back

Tags

CCSS.HSF.TF.A.1

4.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.HSF.TF.C.9

5.

FLASHCARD QUESTION

Front

What is the cosine of 0 radians?

Back

The cosine of 0 radians is 1.

Tags

CCSS.HSF.TF.A.2

6.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.HSF.TF.C.9

7.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.HSF.TF.C.9

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