Find the value of: \( (\operatorname{cosec} A-\sin A)(\sec A-\cos A) \) \( (\tan \mathrm{A}+\cot...
Find the value of: \( (\operatorname{cosec} A-\sin A)(\sec A-\cos A) \) \( (\tan \mathrm{A}+\cot \mathrm{A}) \).
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