俊狼猎英团队为您解答
1/2ac*sinB=√3,得ac=4,
b^2=a^2+c^2-2ac*cosB=a^2+c^2-ac=a^2+c^2-4=16,
a^2+c^2=20
(a+c)^2=28,a+c=2√7,
(a-c)^2=12,|a-c|=2√3,
a=√7+√3或√7-√3.
俊狼猎英团队为您解答
1/2ac*sinB=√3,得ac=4,
b^2=a^2+c^2-2ac*cosB=a^2+c^2-ac=a^2+c^2-4=16,
a^2+c^2=20
(a+c)^2=28,a+c=2√7,
(a-c)^2=12,|a-c|=2√3,
a=√7+√3或√7-√3.