Unit Circle - Quadrantal and Common Angles

For which quadrantal angle(s) does sinθ = 0?

• 0

• 0 and 90

• 90 and 270

• 0 and 180

For which quadrantal angle(s) does sinθ = 1?

• 0

• 90

• 180

• 90 and 270

For which quadrantal angle(s) does sinθ = undefined?

• 0 and 180

• 90 and 270

• only 180

• Sine is never undefined

Tags

CCSS.HSF.TF.A.2

For which quadrantal angle(s) does sinθ = -1?

• 180

• 90

• 270

• Sine is never negative.

For which quadrantal angle(s) does cosθ = 0?

• 0 and 180

• 90 and 270

• 90 only

• Cosine never equals 0

For which quadrantal angle(s) does cosθ = 1?

• 0

• 90

• 0 and 180

• 90 and 270

For which quadrantal angle(s) does cosθ = undefined?

• 0 and 180

• 90 and 270

• 360

• Cosine is never undefined.

For which quadrantal angle(s) does tanθ = 0?

• 0 and 180

• 90 and 270

• 180 only

• Tangent never equals 0.

For which quadrantal angle(s) does tanθ = 1?

• 180

• 0 and 180

• 90 and 270

• Tangent never equals 1

For which quadrantal angle(s) does tanθ = undefined?

• 0 and 180

• 90 and 270

• 90 and 180

• Tangent is never undefined.

Tags

CCSS.HSF.TF.A.2