Please give the exact answer with steps
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we asume A as tita
now
(sinA -secA)^2 + (cosA - cosecA)^2 =(1-secA cosecA)
now first open bracket
sina^2 -seca^2+cosa2-coseca^2= a
now 2 seca - seca 2 + cosec 2 - cosec 2=
now
1 - sec A cosecA) ^2
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