The minimum value of `|x-1|+|x-2|+...+|x-10| , x in R` is

The minimum value of 2x^2 +x-1 is

The minimum value of 2x^2+x-1 is

The minimum value of 2x^(2)+x-1 is

The minimum value of 2 x^(2)+x-1 is

The minimum value of f(x)=2x^2+3x+1 is

The minimum value of f(x)=2x^(2)+x-1 is-

If the maximum value of ||x-3| - |x-2|| is a and minimum value of |x-1| + |x-2| is b, then find the value of (a+b).