JEE Mains Model Paper 12

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Question : 21 of 90
 
Marks: +1, -0
If f ( x) be continuous function for all x and satisfies,
x2 + (f(x) -2) x + 23 - 3 - 3 , f (x) = 0 , ∀ x ∊ R. Then f (3) is equal to :
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