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mhanifa

Answer:

  • See below

Step-by-step explanation:

Use identities:

  • sin 2x = 2sinxcosx
  • cos 2x = cos²x - sin²x

Simplify the given:

  • sin 2x / (1 - cos 2x) =
  • 2sin x cos x / (sin² x + cos² x - cos² x + sin² x) =
  • 2sin x cos x / 2sin² x =
  • cos x / sin x =
  • cot x = tan (90° - x) (in the quadrant I)

Apply to the given:

  • sin (44°) / (1 - cos (44°)) =
  • tan (90° - 44°/2) =
  • tan (90° - 22°) =
  • tan  (68°)

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