Prove the Identity $$\frac { 1 - 2 \sec x - 3 \sec ^ { 2 } x } { - \tan ^ { 2 } x } = \frac { 1 - 3 \sec x } { 1 - \sec x }$$

question 69

Essay

Prove the identity.
- $$\frac { 1 - 2 \sec x - 3 \sec ^ { 2 } x } { - \tan ^ { 2 } x } = \frac { 1 - 3 \sec x } { 1 - \sec x }$$

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