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Sin48sec42+cosec42=2

Answer»

Your question is WRONG ... it should be
sin48°sec42°+cos48°cosec42°
Solution:
LHS
sin48°sec42° + cosec42°
sin(90°-42°)sec42° + COS(90°-42°)cosec42°
cos42°sec42°+sin42°cosec42° = 1+1 = 2 = RHS {Proved}



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