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Let f(x) = {((1-cos 4x)/(x^(2))",",x lt ...

Let `f(x) = {((1-cos 4x)/(x^(2))",",x lt 0),(a",",x = 0),((sqrt(x))/(sqrt(16+sqrt(x))-4))",", x gt 0):}` Then, the value of a if possible, so that the function is continuous at x = 0, is……….

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