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Butoxors [25]
3 years ago
10

Please help with this review question.

Mathematics
1 answer:
VMariaS [17]3 years ago
5 0

Answer:

  the correct choice is marked

Step-by-step explanation:

Expressing the difference over a common denominator, we have ...

  (sec(θ)² -1)/sec(θ) = tan(θ)²cos(θ) = tan(θ)·(sin(θ)/cos(θ))·cos(θ)

  = tan(θ)sin(θ)

_____

We have used the following identities:

  • sec(θ)² -1 = tan(θ)²
  • 1/sec(θ) = cos(θ)
  • tan(θ) = sin(θ)/cos(θ)
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