If P = | 1-2x | + | 1-3x | + | 1-4x | +. + | 1-10x |, for any allowable value of X in a certain range, is the fixed value, then the fixed value is?
Because 2 + 3 + 4 + 5 + 6 + 7 = 8 + 9 + 10 = 27
So when p = | 1-2x | + | - 1-3x | + | - 1-4x | +. + | - 1-10x|
=1-2X+1-3X+1-4X+1-5X+1-6X+1-7X+8X-1+9X-1+10X-1
=6-3
=3
According to this regulation, X should be less than or equal to 1 / 7 and greater than or equal to 1 / 8
So when 1 / 8
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