Unit Circle review Final Exam

tanθ is positive in

• the 1st and 2nd quadrants
• the 1st and 3rd quadrants
• the 1st and 4th quadrants
• the 2nd and 3rd quadrants

Tags

CCSS.HSF.TF.A.2

What is the radius of a unit circle?

• 1
• 2
• 1/2
• 0

Tags

CCSS.HSF.TF.A.2

*

• csc x
• sec x
• cot x
• tan x

What is half a circle in radians?

• π/4
• π
• 2π
• π/2

Tags

CCSS.HSF.TF.A.1

• OP

• 1

• sinθ

• cosθ

Tags

CCSS.HSF.TF.A.2

What about tangent? Use the triangle to answer the following questions.

In terms of x and y, what does tanθ equal?

tanθ=​ ​ (a)  

In terms of sinθ and cosθ, what does tanθ equal?

tanθ=​ (b)  

• x
• y
• sinθ
• cosθ

Tags

CCSS.HSG.SRT.C.6

Unlike right triangle trigonometry, sine and cosine may be negative.

Thinking about how sine, cosine, and tangent relate to (x,y) coordinate pairs on the unit circle, find the quadrants where:

sine is positive: ​ (a)   ​& (b)  

sine is negative: ​ ​ (c)   &​ (d)  

• I
• II
• III
• IV

Tags

CCSS.HSF.TF.A.2

Unlike right triangle trigonometry, sine and cosine may be negative.

Thinking about how sine, cosine, and tangent relate to (x,y) coordinate pairs on the unit circle, find the quadrants where:

cosine is positive: ​ (a)   ​& (b)  

cosine is negative: ​ ​ (c)   &​ (d)  

• I
• IV
• II
• III

Tags

CCSS.HSF.TF.A.2

Unlike right triangle trigonometry, sine and cosine may be negative.

Thinking about how sine, cosine, and tangent relate to (x,y) coordinate pairs on the unit circle, find the quadrants where:

tangent is positive: ​ (a)   ​& (b)  

tangent is negative: ​ ​ (c)   &​ (d)   ​

• I
• III
• II
• IV

Tags

CCSS.HSF.TF.A.2

Tags

CCSS.HSG.SRT.C.8