cot θ ∙ sec θ = csc θ
Note that cot θ = cos θ / sin θ, and sec θ = 1 / cos θ:
cos θ / sin θ ∙ 1 / cos θ = csc θ
1 / sin θ = csc θ
Note that 1 / sin θ = csc θ. Thus:
csc θ = csc θ
Verify the identity. Show your work.
cot θ ∙ sec θ = csc θ
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