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

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• sin x
• cos x
• tan x
• csc x

Tags

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

Choose the correct ratio.

• sin(37)=x/14
• cos(37)=x/14
• tan(37)=x/14
• sin(37)=14/x

Tags

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

Set up the problem.

• sin(47) = x/28
• cos(47) = x/28
• tan(47) = x/28
• cos(47) = 28/x

Tags

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

Rewrite tan(x) in terms of sin(x) and cos(x).

• tan(x) = cos(x)/sin(x)
• tan(x) = 1/cot(x)
• tan(x) = sin(x)/cos(x)
• tan(x) = opp/adj

Tags

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

Name the quadrant in which ∠A lies, if tanA < 0, cosA < 0

• 4

• 3

• 2

• 1

Tags

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

Organize this equation so it can be factored:

1−sin²x + sinx = 1

• move all to the right: 0 = sin²x − sinx

• cancel the ones and cancel a sinx

• replace sin²x with 1 − cos²x

• use this: 0 = sin²x − sinx + 2

Tags

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

Verify the following.
tanB (cotB + tanB) = sec²B

• 1+ tan²B
• sec²B
• cot²B
• tan²B

Tags

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

tan²x + 1 =

• csc²x

• sec²x

• sec²x - 1

• cscx

Tags

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

Sin A

• ²¹/₂₀

• ²¹/₂₉

• ²⁹/₂₁

• ²⁰/₂₉

Tags

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

 Identify the trig ratio that may be used to find the marked unknown side.

•  $Sin\ 38\degree\ =\ \frac{h}{15}$  

•  $Sin\ 38\degree\ =\ \frac{15}{h}$  

•  $Cos\ 38\degree\ =\ \frac{15}{h}$  

•  $Tan\ 38\degree=\ \frac{h}{15}$  

Tags

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