Let [t] denote the greatest integer t and _ x 0 x [ 4 x ]=A. Then the function, f(x)=[x^2] ( x) is...

Question

Let [t] denote the greatest integer t and _ x 0 x [ 4 x ]=A. Then the function, f(x)=[x^2] ( x) is discontinuous, when x is equal to -

Accepted Answer

(A)

JEE Main 2020 Mathematics question