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Write the Word or Phrase That Best Completes Each Statement csc⁡x−1csc⁡x+1=cot⁡2xcsc⁡2x+2csc⁡x+1\frac { \csc x - 1 } { \csc x + 1 } = \frac { \cot ^ { 2 } x } { \csc ^ { 2 } x + 2 \csc x + 1 }

Question 212

Essay

Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
- csc⁡x−1csc⁡x+1=cot⁡2xcsc⁡2x+2csc⁡x+1\frac { \csc x - 1 } { \csc x + 1 } = \frac { \cot ^ { 2 } x } { \csc ^ { 2 } x + 2 \csc x + 1 }

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