[其他] boolean algebra

[yuchiao0921 (挑戰在我就在)]

(x+y)(x'+z)(y+z)=(x+y)(x'+z)

請問這個式子為什麼會成立

除了畫truth table還有其他方法嗎?


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→ yhliu       :(x+y)(x'+z)(y+z) = (x+y)(x'+z)y + (x+y)(x'+z)z
→ yhliu       : = (x+y)y(x'+z) + (x+y)(x'+z)
→ yhliu       : = (x+y)(x'+z) + (x+y)(x'+z) = (x+y)(x'+z)
→ yuchiao0921 :看不懂@@