sin²A÷cos²A+cos²A÷sin²A=sec²A-cosec²A-2
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Answer: sin2 a/cos2 a + cos2 a /sin2a=lhs
Step-by-step explanation:tan^2 a + cot^2 a
sec^2-1+cosec^2-1
Sec^2+cosec^2-2=this
Hence shown
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