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Establish the Identity sec⁡4x−tan⁡4x=sec⁡2x+tan⁡2x\sec ^ { 4 } x - \tan 4 x = \sec ^ { 2 } x + \tan ^ { 2 } x

Question 84

Essay

Establish the identity.
- sec⁡4x−tan⁡4x=sec⁡2x+tan⁡2x\sec ^ { 4 } x - \tan 4 x = \sec ^ { 2 } x + \tan ^ { 2 } x

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