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    Precalculus Graphical Numerical Algebraic
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    Exam 5: Analytic Trigonometry
  5. Question
    Prove the Identity\[\cot ^ { 2 } x = ( \csc x - 1 ) ( \csc x + 1 )\]
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Prove the Identity cot⁡2x=(csc⁡x−1)(csc⁡x+1)\cot ^ { 2 } x = ( \csc x - 1 ) ( \csc x + 1 )cot2x=(cscx−1)(cscx+1)

Question 129

Question 129

Essay

Prove the identity.
- cot⁡2x=(csc⁡x−1)(csc⁡x+1)\cot ^ { 2 } x = ( \csc x - 1 ) ( \csc x + 1 )cot2x=(cscx−1)(cscx+1)

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