KCET 2010 Math Solved Paper

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Question : 22 of 60
 
Marks: +1, -0
If x≠nπ,x≠(2n+1)
π
2
,n∊Z
, then
Sin−1(Cos‌x)+Cos−1(Sin‌x)
Tan−1(Cot‌x)+Cot−1(Tan‌x)
=............................
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