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6、x)a0f(x)(1)(0,1a0f(x),a(2)f(2)21 a2.f(x)2ln x 2x3.3 m、2g(x)x Q2 X 2x 2g(x)3x(m4)x2.g(x)(t,3)g(0)2.fgt 0.g1 0 37 g(t)0 g 2 03m01 x1 22.(1)-f(x)xIn xf(x)1x=0 x1f(x)0f(x)1x0f(x)(2)1f(x)(0e1 f(x)min 1.1 ln x vg(x)0 x0g(x)(0e 1 1 g(x)maxg(e)1 1 f(x)min g(x)max2 1)f(x)g(x).1 ax1(3)af(x)axln x(xq0e)3f(x)ax4 a0f(x)(0ef(x)min f(e)ae-1 3a()D f(x)31(n(1 1 0aef(x)I 0a jI,e a a 2 f(x)min f;1 ln a3ae 1 4 ef(x)(0ef(x)min f(e)ae1 3a()a e f(x)3.ae2xq0ef(x)3.f(x)f(1)1.