Can you name the Sine or Cosine?? by Gevaarlijk

Expression	Sine or Cosine?
sin θ = ?
cos θ = ?
- ∫ sin θ dθ = ?
∫ cos θ dθ = ?
tan θ * cos θ = ?
1 / csc θ = ?
1 / sec θ = ?
½ᵢ (eᶥᶿ - e⁻ᶥᶿ) = ?
½ (eᶥᶿ + e⁻ᶥᶿ) = ?
sin(π/2 - θ) = ?
cos(π/2 - θ) = ?
√(1 - cos² θ)?
cos² θ/2 - sin² θ/2?
sin 2θ / 2 cos θ?
cos 2θ -1 / 2 sin θ?
Im{eᶥᶿ}?
sin θ =
cos θ =
- ∫ sin θ dθ =
∫ cos θ dθ =
tan θ * cos θ =
1 / csc θ =
1 / sec θ =
½ᵢ (eᶥᶿ - e⁻ᶥᶿ) =
½ᵢ (eᶥᶿ + e⁻ᶥᶿ) =
sin(π/2 - θ) =
cos(π/2 - θ) =
√(1 - cos² θ)
cos² θ/2 - sin² θ/2
sin 2θ / 2 cos θ
cos 2θ -1 / 2 sin θ
Im{eᶥᶿ}

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Sine or Cosine? Quiz

by Gevaarlijk

Created Aug 25, 2012 in Science
Game Plays 31

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	WyvernSabres:	Aug 27th, 2012 at 16:41 GMT		1 point
	cos 2θ = 1 - 2sin²θ, so (cos 2θ - 1) / 2 sin θ = -sin θ, not sin θ. You mean (1 - cos 2θ) / 2 sin θ, and please note that the parenthesis is a necessary part of the expression.