已知sin(45度＋α)＝5/13 sin(135度-α)＝

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已知sin(45度＋α)＝5/13sin(135度-α)＝已知sin(45度＋α)＝5/13sin(135度-α)＝已知sin(45度＋α)＝5/13sin(135度-α)＝5/13

已知sin(45度＋α)＝5/13 sin(135度-α)＝
已知sin(45度＋α)＝5/13 sin(135度-α)＝

已知sin(45度＋α)＝5/13 sin(135度-α)＝
5/13