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Answer:
sec 2A
Step-by-step explanation:
Convert into sin A and cos A format
((sin²A + cos²A)/(sin²A*cos²A)) / ((cos²A - sin²A)/sin²A*cos²A))
= (sin²A + cos²A) / (cos²A - sin²A)
= 1/ (cos 2A)
= 1/ (cos 2A)= sec 2A
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