Cot^3t/csct = cost(csc^2t-1)

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21-09-2016
Mathematics

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Cot^3t/csct = cost(csc^2t-1)

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Аноним Аноним · Answer 1 · 2016-09-21T05:39:39+02:00

We have to try to verify the identity -- [tex] \dfrac{Cot^3t}{csct} = cost(csc^2t-1)[/tex]

[tex]cost(csc^2t - 1) [/tex]

[tex]cost(cot^2t) [/tex]

[tex]cost( \dfrac{cos^2t}{sin^2t} ) [/tex]

[tex]\dfrac{cos^3t}{sin^2t} [/tex]

[tex]sin^2t \neq csct[/tex]