sec2 (Tan-1 2) + cosec2 (Cot-1 3) =

Sin2(Tan-12)+ Cosec2 (cot-1 3) = 1+tan2(Tan-12)+1 + Cot2(Cot-13)= 1 + (2)2+ 1 +(3)2= 15

Sin2(Tan-12)+ Cosec2 (cot-1 3) = 1+tan2(Tan-12)+1 + Cot2(Cot-13)= 1 + (2)2+ 1 +(3)2= 15

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sec² (Tan^-1 2) + cosec² (Cot^-1 3) =

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Sin²(Tan^-12)+ Cosec² (cot^-1 3) = 1+tan²(Tan^-12)+1 + Cot²(Cot^-13)= 1 + (2)²+ 1 +(3)²= 15

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