If a=b
[ a=b ] x b
[ ab = b^2 ] -a^2
[ ab - a^2 = b^2 - a^2 ] <-- simplify
[ a ( b-a ) = (b-a)(b+a) ] <-- divide (b-a) from both sides
[ a = b + a ] <-- since a = b
[ a = a + a ]
hence a = 2a , 1 = 2
another 1
a = b
a^2 = ab
2a^2 = a^2 + ab
2a^2 - 2ab = a^2 +ab - 2ab
2a^2 - 2ab = a^2 -ab
2(a^2 - ab) = a^2 - ab
======> 2=1
無能
-
離上一個post.. 三年多..
漸漸的..
我也變成了自己以前口中所謂的"壞醫生"..
太多大便怎樣都收不完
太多的推卸責任
太多的....
麻木? 逼不得已? 隨波逐流?
只能怪自己
無能吧..
5 years ago