Write True if the statement is correct and False if the statement is incorrect. 1) The range of signum function is [-1, 11]
2) The range of greatest integer is integer.
3) Logarithm function is one to one function.
4) All functions are invertible.
5) For x > 0 simplest form of f(x) =
is 2.
6) The solution of(x-2)=6 is 8<x59.
7) If f(x) = 3(sgn x + 1) then f(-x)+F(x)is 6.
8) The solution set of sgn(x-3)=-lis (-0,3).
9) All one to one function is invertible.
10) The inverse of f(x) = List
11) If KER/{-2}then R = {(x, y): (k-1)x + (x+2)y+6=0) is function.
12) Signum function is one to one function,​