(1)
b²=a²+c²-2accosB
=(2√3)²+(√6+√2)²-4√3(√6+√2)√2/2
=12+8+4√3-12-4√3
=8
b=2√2
(2)
a/sinA=b/sinB
2√3/sinA=2√2/sin45
sinA=√3/2
A=π/3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
祝你学习进步,更上一层楼!
不明白请及时追问,满意敬请采纳,O(∩_∩)O谢谢~~
(1)
b²=a²+c²-2accosB
=(2√3)²+(√6+√2)²-4√3(√6+√2)√2/2
=12+8+4√3-12-4√3
=8
b=2√2
(2)
a/sinA=b/sinB
2√3/sinA=2√2/sin45
sinA=√3/2
A=π/3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
祝你学习进步,更上一层楼!
不明白请及时追问,满意敬请采纳,O(∩_∩)O谢谢~~