已知y=根号2x—3 +根号3—2x +5 试求x+y+5/2的平方根

• .1.参考答案-1
  y=根号2x—3 +根号3—2x +5 ==> 2x- 3 = 3 -2x =0 ==> x =3/2 y = 0 +0 + 5 =5 x +y +5 /2 = 3/2 + 5 + 5/2 = 9 x+y+5/2的平方根 = 9的平方根 = ±3
  采纳哦