求(sin(派-x)cos(3/2派-x)tanx)/(cos(2派-x)cot(x-派/2)sin(派/2-x))
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![求(sin(派-x)cos(3/2派-x)tanx)/(cos(2派-x)cot(x-派/2)sin(派/2-x))](/uploads/image/z/12547425-57-5.jpg?t=%E6%B1%82%28sin%28%E6%B4%BE-x%29cos%283%2F2%E6%B4%BE-x%29tanx%29%2F%28cos%282%E6%B4%BE-x%29cot%28x-%E6%B4%BE%2F2%29sin%28%E6%B4%BE%2F2-x%29%29)
求(sin(派-x)cos(3/2派-x)tanx)/(cos(2派-x)cot(x-派/2)sin(派/2-x))
求(sin(派-x)cos(3/2派-x)tanx)/(cos(2派-x)cot(x-派/2)sin(派/2-x))
求(sin(派-x)cos(3/2派-x)tanx)/(cos(2派-x)cot(x-派/2)sin(派/2-x))
原式
=(sinx•(-sinx)•tanx)/(cosx•(-tanx)•cosx)
=sin²x/cos²x
=tan²x