Evaluate (sin 25^∘/cos 65^∘)^2+(tan 65^∘/ 25^∘)^2-2 cos ^2 45^∘ (IV)

Evaluate (sin 25^∘/cos 65^∘)^2+(tan 65^∘/ 25^∘)^2-2 cos ^2 45^∘
(IV)

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