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Eric A.

asked • 05/25/20

Trigonomety Questions (solving trig functions, finding area of shaded region)

Hi! I'm very confused on these questions. I've tried to do so myself but am struggling greatly. Would be very appreciated if someone could help me soon! I just really need help with finding the area of a shaded region and solving trig functions (assignment is due very soon, and I can't add images?):

  1. Solve the equation 2cosx + 3sinx = 0, for 0 ≤ x ≤ 360 (I got x=-33.7)
  2. Find the set of values of x for 0 ≤ x ≤ 360 for which 2cosx + 3sinx > 0
  3. Show that the equation ((cosθ-4)/sinθ)-(4sinθ)/(5cosθ-2)=0 may be expressed as 9cos^2θ-22cosθ+4=0
  4. Solve sec^2θ=3cosecθ
  5. Prove the identity and solve ((1/cosθ)-tanθ)^2=(1-sinθ)/(1+sinθ)

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