Card 1 of 20
Rewrite tanθ\tan\thetatanθ using sine and cosine.
A
For a right-angled triangle, sinθ=\sin\theta=sinθ= oppositehypotenuse\boxed{\dfrac{\text{opposite}}{\text{hypotenuse}}}hypotenuseopposite.
B
In radians, tanθ\tan\thetatanθ is undefined when θ=π2+nπ, n∈Z\boxed{\theta=\dfrac{\pi}{2}+n\pi,\ n\in\mathbb Z}θ=2π+nπ, n∈Z.
C
θ=0∘, 60∘, 180∘, 300∘\theta=0^\circ,\ 60^\circ,\ 180^\circ,\ 300^\circθ=0∘, 60∘, 180∘, 300∘
D
tanθ≡sinθcosθ\tan\theta\equiv\dfrac{\sin\theta}{\cos\theta}tanθ≡cosθsinθ, where cosθ≠0\cos\theta\neq0cosθ=0.
Card 1 of 20
1.7.7 Identity tan = sin/cos Flashcards
20 flashcards on OCR (MEI) A Level Maths 1.7.7 Identity tan = sin/cos: the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.