2sin²(x-π/12)怎么化简

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2sin²(x-π/12)怎么化简2sin²(x-π/12)怎么化简2sin²(x-π/12)怎么化简

2sin²(x-π/12)怎么化简
2sin²(x-π/12)怎么化简

2sin²(x-π/12)怎么化简