CCSS.Math.Content.HSF.TF.A.4

Based on your unit circle sin(30^o)=

• sqt2/2
• 1/2
• 1
• sqt3/2

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CCSS.Math.Content.HSF.TF.A.4

Based on your unit circle cos(0^o)=

• 1
• 0
• -1
• 1/2

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CCSS.Math.Content.HSF.TF.A.4

Which equation?

• y= -cos(2x)
• y= cos(2x)
• y= (1/2)cosx
• y= (-1/2)cosx

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CCSS.Math.Content.HSF.TF.A.4

cos 40⁰ = ?

• sin 50⁰
• cos 50⁰
• tan 50⁰
• sin 40⁰

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CCSS.Math.Content.HSF.TF.A.4

sin(7π/4)

• 1/2
• -√2/2
• √2/2
• -1/2

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CCSS.Math.Content.HSF.TF.A.4

Based on your unit circle cos(0^o)=

• 1
• 0
• -1
• 1/2

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CCSS.Math.Content.HSF.TF.A.4

What is the range of y = sin x  ?

• {-1 < y < 1}
• {-1 ≤ y ≤ 1}
• {-1 < x < 1}
• {-1 ≤ x ≤ 1}

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CCSS.Math.Content.HSF.TF.A.4

cos (π/2)

• 0
• √2/2
• 1/2
• 1

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CCSS.Math.Content.HSF.TF.A.4

Sine or Cosine?

• y=sinx
• y=cosx

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CCSS.Math.Content.HSF.TF.A.4

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

• y

• x

• 1/y

• y/x

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CCSS.Math.Content.HSF.TF.A.4