Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
-$$\tan ^ { 2 } x = \sec ^ { 2 } x - \sin ^ { 2 } x - \cos ^ { 2 } x$$

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The Answer of Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
-$$\tan ^ { 2 } x = \sec ^ { 2 } x - \sin ^ { 2 } x - \cos ^ { 2 } x$$

Write the Word or Phrase That Best Completes Each Statement tan⁡2x=sec⁡2x−sin⁡2x−cos⁡2x\tan ^ { 2 } x = \sec ^ { 2 } x - \sin ^ { 2 } x - \cos ^ { 2 } xtan2x=sec2x−sin2x−cos2x

Write the Word or Phrase That Best Completes Each Statement $\tan ^ { 2 } x = \sec ^ { 2 } x - \sin ^ { 2 } x - \cos ^ { 2 } x$