[" If function "f(x)={[sqrt(2),," when "...

[" If function "f(x)={[sqrt(2),," when "x in Q],[0,," when "x in Q]" ,(fof) "sqrt(4)" the value will be: "],[[" (A) "0," (B) "2," (C) "sqrt(2)," (D) Non "]]

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