The sum of all the elements in the range of f(x)= Sgn ( x)+ Sgn ( x)+ Sgn ( x)+ Sgn ( x), x n 2 , n Z, where...

Question

The sum of all the elements in the range of f(x)= Sgn ( x)+ Sgn ( x)+ Sgn ( x)+ Sgn ( x), x n 2 , n Z, where Sgn (t)= cases 1, & if t>0 -1 & if t<0 cases , is

Accepted Answer

(2)

JEE Main 2026 Mathematics question

Solution