a-2的绝对值+(b+1)的平方=0,则b-a-1/2=?_数学解答

a-2的绝对值+(b+1)的平方=0,则b-a-1/2=?

人气：416 ℃　时间：2020-02-15 13:19:08

解答

a -2 =0 ==> a = 2 b +1 =0 ==> b =-1 b -a -1/2 = -1 - 2 - 1/2 = -7/2