18.5 quiz Pythagorean identity

Please select the correct solution 
cos ² x + sin ² x=  

• 1
• csc ² x + sec ² x
• sin ² x
• 1 - sin ² x

Tags

CCSS.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

Please select the correct solution

• csc x
• sec x
• cot x
• tan x

Tags

CCSS.HSF.TF.C.8

1 - sin²x = ?

• tan² x
• cos² x
• cot² x
• csc² x

Tags

CCSS.HSF.TF.C.8

1 - cos²x = ?

• sin² x
• tan² x
• cot² x
• csc² x

• 0.950

• -0.950

• 0.313

• -0.313

• 0.265

• -0.265

• 0.735

• -0.735

• 0.046

• -0.979

• 0.311

• 0.144

What value on the unit circle represents sine?

• y

• x

• 1

What value on the unit circle represents cosine?

• 1

• y

• x