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Question If cosθ=1/4 and θ

  1. How do I prove that secθ - tanθsinθ = cosθSo far I have LS 1/cosθ - sinθ/cosθ (sinθ) =1/cosθ -sin^2/cosθ
  2. 1. (P -15/17, -8/17) is found on the unit circle. Find sinΘ and cosΘWork: P= (-15/17, -8/17) cosΘ = a value P = (a,b) sinΘ =
  3. Find f.f ''(θ) = sin θ + cos θ, f(0) = 5, f '(0) = 3 My steps: f'(θ)=cosθ-sinθ+C When f'(0)=3, C=-2, so
  4. Find the exact value of (sinθ) (cosθ) if cosθ > 0 and tanθ = −2/3
  5. If sinθ=4/5 and cosθ<0,find the exact value of cosθ and tanθhelp me!
  6. Prove (cosecθ-cotθ)^2=1-cosθ÷1+cosθ
  7. If sinθ=3/4and π/2<θ<π , find cosθ .(1 point) cosθ=
  8. If sinθ=34 and π2<θ<π, find cosθ.(1 point)cosθ=
  9. If sinθ=16 and π2<θ<π , find cosθ .(1 point)cosθ=
  10. If sinθ=34and π2<θ<π , find cosθ .(1 point) cosθ=