JEE Advanced Model Paper 13 with solutions for online practice

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Question : 53 of 60

Marks: +1, -0

Let f : R → Z , f(x) = [x2] + [x + 1] - 3 , where [.] is G.I.F . Then which is /are true

f (x) is a many-one and not onto function
f (x) = 0 for infinite number of values of x
f (x) = 0 for only two real values of x
f (x) is a many-one and onto function

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