计算下列两道题

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 09:28:41
计算下列两道题计算下列两道题计算下列两道题(1)原式=√12-√3x(2-√3)/(4-3)=2√3-2√3+3=3(2)原式=(3+2-2√6)+4(√6-2)/(6-2)=5-2√6+√6-2=3

计算下列两道题
计算下列两道题

计算下列两道题
(1)原式=√12 - √3 x (2 - √3)/(4-3)=2√3 - 2√3 + 3=3
(2)原式=(3+2-2√6)+ 4(√6 - 2)/(6-2)=5-2√6 +√6 -2=3-√6

(1)√12-√3/(2+√3)
=√12-√3(2-√3)/(2+√3)(2-√3)
=√12-2√3+3
=2√3-2√3+3
=3
(2) (√3-√2)² +4/(√6+2)
=3-2√6+2+4(√6-...

全部展开

(1)√12-√3/(2+√3)
=√12-√3(2-√3)/(2+√3)(2-√3)
=√12-2√3+3
=2√3-2√3+3
=3
(2) (√3-√2)² +4/(√6+2)
=3-2√6+2+4(√6-2)/(√6+2)(√6-2)
=5-2√6+4(√6-2)/2
=5-2√6+2(√6-2)
=5-2√6+2√6-4
=1

收起