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> 已知函数 f(x)= 3 2 sin2x- 1 2 (cos2x-sin2x)-1 （1）求函数f（x）的最小值和最小正周期；（2）设△ABC的内角A、B、C、的对边分别为a、b、c，且c= 3 ，f（C）=0，若向量 m =(1， sinA)与向量 n =(2，sinB)共线，求a，b．

问题：

发布时间：2024-09-09

已知函数 f(x)=

3

2

sin2x-

1

2

(cos2x-sin2x)-1
（1）求函数f（x）的最小值和最小正周期；
（2）设△ABC的内角A、B、C、的对边分别为a、b、c，且c=

3

，f（C）=0，若向量

m

=(1， sinA)与向量

n

=(2，sinB)共线，求a，b．

参考答案：

提问用户：FM***i5H

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已知函数 f(x)= 3 2 sin2x- 1 2 (cos2x-sin2x)-1 （1）求函数f（x）的最小值和最小正周期； （2）设△ABC的内角A、B、C、的对边分别为a、b、c，且c= 3 ，f（C）=0，若向量 m =(1， sinA)与向量 n =(2，sinB)共线，求a，b．

可能感兴趣的题目：

已知函数 f(x)=

3

2

sin2x-

1

2

(cos2x-sin2x)-1
（1）求函数f（x）的最小值和最小正周期；
（2）设△ABC的内角A、B、C、的对边分别为a、b、c，且c=

3

，f（C）=0，若向量

m

=(1， sinA)与向量

n

=(2，sinB)共线，求a，b．