若函数f(x)=x^2,则对任意实数x1,x2,下列不等式总成立的是:A.f[(x1+x2)/2]小于等于[f(x1)+f(x2)]/2B.f[(x1+x2)/2]小于[f(x1)+f(x2)]/2C.f[(x1+x2)/2]大于等于[f(x1)+f(x2)]/2D.f[(x1+x2)]/2大于[f(x1)+f(x2)]/2
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![若函数f(x)=x^2,则对任意实数x1,x2,下列不等式总成立的是:A.f[(x1+x2)/2]小于等于[f(x1)+f(x2)]/2B.f[(x1+x2)/2]小于[f(x1)+f(x2)]/2C.f[(x1+x2)/2]大于等于[f(x1)+f(x2)]/2D.f[(x1+x2)]/2大于[f(x1)+f(x2)]/2](/uploads/image/z/800291-11-1.jpg?t=%E8%8B%A5%E5%87%BD%E6%95%B0f%28x%29%3Dx%5E2%2C%E5%88%99%E5%AF%B9%E4%BB%BB%E6%84%8F%E5%AE%9E%E6%95%B0x1%2Cx2%2C%E4%B8%8B%E5%88%97%E4%B8%8D%E7%AD%89%E5%BC%8F%E6%80%BB%E6%88%90%E7%AB%8B%E7%9A%84%E6%98%AF%EF%BC%9AA.f%5B%28x1%2Bx2%29%2F2%5D%E5%B0%8F%E4%BA%8E%E7%AD%89%E4%BA%8E%5Bf%28x1%29%2Bf%28x2%29%5D%2F2B.f%5B%28x1%2Bx2%29%2F2%5D%E5%B0%8F%E4%BA%8E%5Bf%28x1%29%2Bf%28x2%29%5D%2F2C.f%5B%28x1%2Bx2%29%2F2%5D%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E%5Bf%28x1%29%2Bf%28x2%29%5D%2F2D.f%5B%28x1%2Bx2%29%5D%2F2%E5%A4%A7%E4%BA%8E%5Bf%28x1%29%2Bf%28x2%29%5D%2F2)
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