sogellagsiana sogellagsiana
  • 03-06-2021
  • Mathematics
contestada

Simplify the expression using trigonometric identities (csc θ – csc θ · cos^2 θ).

options:


A)


sin^2 θ


B)


sin θ · tan θ


C)


sin^3 θ


D)


sin θ

Respuesta :

joshua20053
joshua20053 joshua20053
  • 03-06-2021
B because it equals out to 0 if u use the format
Answer Link
msm555
msm555 msm555
  • 03-06-2021

Answer:

Solution given:

cscθ -cscθcos²θ

taking common

cscθ(1-cos²θ)

we have

1-cos²θ=sin²θ and cscθ=1/sinθ

now

1/sinθ*sin²θ

=sinθ

so

D)

sin θ is a required answer.

Answer Link

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