⒈函数y=log1/2(2x-x^2)的单调增区间为?⒉已知sin(pai+a)小于0 cos(pai-a)小于0 则角a所在的象限是?
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![⒈函数y=log1/2(2x-x^2)的单调增区间为?⒉已知sin(pai+a)小于0 cos(pai-a)小于0 则角a所在的象限是?](/uploads/image/z/5926689-9-9.jpg?t=%E2%92%88%E5%87%BD%E6%95%B0y%3Dlog1%2F2%282x-x%5E2%29%E7%9A%84%E5%8D%95%E8%B0%83%E5%A2%9E%E5%8C%BA%E9%97%B4%E4%B8%BA%3F%E2%92%89%E5%B7%B2%E7%9F%A5sin%28pai%2Ba%29%E5%B0%8F%E4%BA%8E0+cos%28pai-a%29%E5%B0%8F%E4%BA%8E0+%E5%88%99%E8%A7%92a%E6%89%80%E5%9C%A8%E7%9A%84%E8%B1%A1%E9%99%90%E6%98%AF%3F)
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