Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
-$$\sec \left( \frac { \pi } { 2 } + u \right) = - \csc u$$

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The Answer of Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
-$$\sec \left( \frac { \pi } { 2 } + u \right) = - \csc u$$

Write the Word or Phrase That Best Completes Each Statement sec⁡(π2+u)=−csc⁡u\sec \left( \frac { \pi } { 2 } + u \right) = - \csc usec(2π​+u)=−cscu

Write the Word or Phrase That Best Completes Each Statement $\sec \left( \frac { \pi } { 2 } + u \right) = - \csc u$