)9?(f(x)).)μ?f(x) =x2, ?(x) = 2x§Kf(?(x)) = (2x)2= 22x= 4x, ?(f(x)) = 2x5.e?(x) =x3+1§|?(x2),(?(x))29?(?(x)).)μ??(x) =x3+1§K?(x2) = (x2)3+1 =x6+1,(?(x))2= (x3+1)2=x6+2x3+1, ?(?(x)) = (x3+1)3+1 =x9+3x6+3x3+2106.?f(x) =11?x§|f(f(x)), f(f(f(x))), f?1f(x)?.)μ?f(x) =11?x§Kf(f(x)) =11?11?x=x?1x, f(f(f(x))) =11?11?11?x=11?x?1x=x, f?1f(x)?=11?(1?x)=1x7.|e??ê???ê9??ê????μ(1)y=x2(?∞< x60)(2)y=√1?x2(?16x60)(3)y= sinx?π26x632π?(4)y=???x,??∞< x <1?x2,?16x64?2x,?4< x <+∞?)μ(1)?y=x2(?∞< x60)§Kx=?√y(06y <+∞)§ld?ê???ê?y=?√x(06y <+∞)(2)?y=√1?x2(?16x60)§Kx=?p1?y2(06y61)§ld?ê???ê?y=?√1?x2(06x61)(3)?y= sinx?π26x632π?§Kx=π?arcsiny(?16y61)§ld?ê???ê?y=π?arcsinx(?16x61)(4)?y=???x,??∞< x <1?x2,?16x64?2x,?4< x <+∞?§Kx=???y,??∞< y <1?√y,?16y616?log2y,?16< x <+∞?§ld?ê???ê?y=???x,??∞< x <1?√x,?16x616?log2x,?16< x <+∞?.
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