3/2sin2x-1/2cos2x-1怎么变成sin(2x-π/3)-1我数学烂到死,连答案都看不懂…√3/2sin2x-1/2cos2x-1 =sin(2x-π/3)-1

3/2sin2x-1/2cos2x-1怎么变成sin(2x-π/3)-1我数学烂到死,连答案都看不懂…√3/2sin2x-1/2cos2x-1 =sin(2x-π/3)-1
3/2sin2x-1/2cos2x-1怎么变成sin(2x-π/3)-1
我数学烂到死,连答案都看不懂…
√3/2sin2x-1/2cos2x-1 =sin(2x-π/3)-1

3/2sin2x-1/2cos2x-1怎么变成sin(2x-π/3)-1我数学烂到死,连答案都看不懂…√3/2sin2x-1/2cos2x-1 =sin(2x-π/3)-1
这个化错了