Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
-$$\frac { \sin x + \cos x } { \sin x - \cos x } = \frac { 1 + 2 \sin x \cos x } { 2 \sin ^ { 2 } x - 1 }$$

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The Answer of Write the word or phrase that best completes each statement or answers the question.
Establish the identity.
-$$\frac { \sin x + \cos x } { \sin x - \cos x } = \frac { 1 + 2 \sin x \cos x } { 2 \sin ^ { 2 } x - 1 }$$

Write the Word or Phrase That Best Completes Each Statement sin⁡x+cos⁡xsin⁡x−cos⁡x=1+2sin⁡xcos⁡x2sin⁡2x−1\frac { \sin x + \cos x } { \sin x - \cos x } = \frac { 1 + 2 \sin x \cos x } { 2 \sin ^ { 2 } x - 1 }sinx−cosxsinx+cosx​=2sin2x−11+2sinxcosx​

Write the Word or Phrase That Best Completes Each Statement $\frac { \sin x + \cos x } { \sin x - \cos x } = \frac { 1 + 2 \sin x \cos x } { 2 \sin ^ { 2 } x - 1 }$