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[" Let "f(x)=sin^(-1)(tan x)+cos^(-1)(co...

[" Let "f(x)=sin^(-1)(tan x)+cos^(-1)(cot x)" then "],[[" (A) "f(x)=(pi)/(2)" wherever defined "," (B) Admain of "f(x)" is "x=n pi+-(pi)/(4),n in I],[" (e) period of "f(x)" is "(pi)/(2)," (D) "f(x)" is many one finction "]]

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