trigonemtry

Exact Trig Ratios

• Calculate the exact value of sin⁡90∘\sin 90^\circ.

• Find cos⁡180∘\cos 180^\circ.

• Determine tan⁡270∘\tan 270^\circ.

Determining Trig Ratios

• Use exact values where possible: a) tan⁡150∘\tan 150^\circ b) cos⁡70∘\cos 70^\circ c) sin⁡240∘\sin 240^\circ d) cos⁡315∘\cos 315^\circ e) sin⁡200∘\sin 200^\circ f) tan⁡115∘\tan 115^\circ

Finding Angles from Exact Value Trig Ratios

• Solve for θ\theta given: a) cos⁡θ=3/2\cos \theta = \sqrt{3}/2 b) tan⁡θ=3/3\tan \theta = \sqrt{3}/3 c) sin⁡θ=−3/2\sin \theta = -\sqrt{3}/2 d) cos⁡θ=−1
  use different numbers and create it kahoot style