"x1x4x2" - 1 õppematerjal

DISKMAT KODUTÖÖ 2015

 1)  x1(x2  1) (x3  1)x4  x1x3(x4  1) = (x1x2  x1  x2  1) ( x3x4  x3  x4  1)  x1x3  x3  x1x2x3  x1x2  x1x4(x2x3  x2  x3  1)  x1x3x4 x1x3 = x1x2x3x4  x1x2x3  x1x2x4  x1x2  x1x3x4  x1x3  x1x4  x1  x2x3x4  x2x3  x2x4  x2  x3x4  x3  x4  1  x1x3  x3  x1x2x3  x1x2  x1x4x2x3  x1x4x2  x1x4x3  x1x4  x1x3x4 x1x3 = x1  x2x3x4  x2x3  x2x4  x2  x3x4  x4  1  x1x3x4 x1x3 10