CCSS.Math.Content.HSF.TF.C.8

*

• tan² x
• cos² x
• cot² x
• csc² x

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CCSS.Math.Content.HSF.TF.C.8

-(sin²x + cos²x)

• -1
• 1
• -2
• 2

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CCSS.Math.Content.HSF.TF.C.8

sinθ is positive in

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

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CCSS.Math.Content.HSF.TF.C.8

Solve the following for cos²θ:
sin²θ + cos²θ = 1

• cos²θ = 1 - sin²θ
• cosθ = 1 + sin²θ
• cosθ = 1 - sinθ
• cos²θ = Adj/hyp

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CCSS.Math.Content.HSF.TF.C.8

Based on the unit circle, what is the value of sin?

• y

• x

• x/y

• y/x

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CCSS.Math.Content.HSF.TF.C.8

tan(3π/4)

• √2/2
• -√2/2
• √3/2
• -1

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CCSS.Math.Content.HSF.TF.C.8

-500^o is in which quadrant?

• I
• II
• III
• IV

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CCSS.Math.Content.HSF.TF.C.8

sec²x =

• sinx + cosx

• 1 + csc²x

• 1 + tan²x

• 1 - sin²x

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CCSS.Math.Content.HSF.TF.C.8

Sin²x = ...

• cosx - 1

• cos²x-1

• 1-cos²x

• 1 - cosx

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CCSS.Math.Content.HSF.TF.C.8

 $\cos\left(\theta\right)=?$  

•  $\frac{3}{5}$  

•  $\frac{4}{5}$  

•  $\frac{3}{4}$  

•  $\frac{4}{3}$  

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CCSS.Math.Content.HSF.TF.C.8