急.1.再△ABC中,一直|AB|=4,|AC|=1,△的面积为√3,则AB·AC的值为———2.函数Y=SINX+(COSX)^2的值域为————3.已知函数f(x)=A的X次方+A的负X次方(A>0,且A≠1),若f(1)=3,则f(2)=____________(A的X此方不
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![急.1.再△ABC中,一直|AB|=4,|AC|=1,△的面积为√3,则AB·AC的值为———2.函数Y=SINX+(COSX)^2的值域为————3.已知函数f(x)=A的X次方+A的负X次方(A>0,且A≠1),若f(1)=3,则f(2)=____________(A的X此方不](/uploads/image/z/3832686-54-6.jpg?t=%E6%80%A5.1.%E5%86%8D%E2%96%B3ABC%E4%B8%AD%2C%E4%B8%80%E7%9B%B4%7CAB%7C%3D4%2C%7CAC%7C%3D1%2C%E2%96%B3%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BA%E2%88%9A3%2C%E5%88%99AB%C2%B7AC%E7%9A%84%E5%80%BC%E4%B8%BA%E2%80%94%E2%80%94%E2%80%942.%E5%87%BD%E6%95%B0Y%3DSINX%2B%EF%BC%88COSX%EF%BC%89%5E2%E7%9A%84%E5%80%BC%E5%9F%9F%E4%B8%BA%E2%80%94%E2%80%94%E2%80%94%E2%80%943.%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3DA%E7%9A%84X%E6%AC%A1%E6%96%B9%2BA%E7%9A%84%E8%B4%9FX%E6%AC%A1%E6%96%B9%EF%BC%88A%3E0%2C%E4%B8%94A%E2%89%A01%EF%BC%89%2C%E8%8B%A5f%281%29%3D3%2C%E5%88%99f%282%29%3D____________%EF%BC%88A%E7%9A%84X%E6%AD%A4%E6%96%B9%E4%B8%8D)
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