3(sinα)^2+2(sinβ)^2=2sinα则(sinα)^2+(sinβ)^2取值范围^
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3(sinα)^2+2(sinβ)^2=2sinα则(sinα)^2+(sinβ)^2取值范围^
![3(sinα)^2+2(sinβ)^2=2sinα则(sinα)^2+(sinβ)^2取值范围^](/uploads/image/z/20051837-53-7.jpg?t=3%28sin%CE%B1%29%5E2%2B2%28sin%CE%B2%29%5E2%3D2sin%CE%B1%E5%88%99%28sin%CE%B1%29%5E2%2B%28sin%CE%B2%29%5E2%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%5E)
因为,3(sinα)^2+2(sinβ)^2=2sinα
所以,3(sinα)^2
所以,3(sinα)^2
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