计算:1.丨1-√2丨+丨√2-√3丨+丨√3-2丨 2.³√-216*√(3/4²)/√0.25*
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/10 11:46:01
计算:1.丨1-√2丨+丨√2-√3丨+丨√3-2丨 2.³√-216*√(3/4²)/√0.25*丨1又7/9丨 急
![计算:1.丨1-√2丨+丨√2-√3丨+丨√3-2丨 2.³√-216*√(3/4²)/√0.25*](/uploads/image/z/18506650-58-0.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A1.%E4%B8%A81-%E2%88%9A2%E4%B8%A8%2B%E4%B8%A8%E2%88%9A2-%E2%88%9A3%E4%B8%A8%2B%E4%B8%A8%E2%88%9A3-2%E4%B8%A8+2.%26%23179%3B%E2%88%9A-216%2A%E2%88%9A%EF%BC%883%2F4%26%23178%3B%EF%BC%89%2F%E2%88%9A0.25%2A)
丨1-√2丨+丨√2-√3丨+丨√3-2丨=√2-1+√3-√2 + 2-√3 = 2-1 =1
³√-216*√(3/4²)/√0.25*丨1又7/9丨= -6 * √3 /4 * 1/2 * 16/9= - 4√3 / 3
³√-216*√(3/4²)/√0.25*丨1又7/9丨= -6 * √3 /4 * 1/2 * 16/9= - 4√3 / 3