若F~F(DF1, DF2), 则 1/F ~ F(DF2, DF1);
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1.若F~F(DF1, DF2), 则 1/F ~ F(DF2, DF1);
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2.8.若f(x)=f(x),且f(1)=a,则f(2)=
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3.若f(x)=xA、f(1)<f(2)<f(4)B、f(4)<f(2)<f(1)C、f(2)<f(1)<f(4)D、f(2)<f(4)<f(1)
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4.若f(x)=x2 bx c,且f(1)=0,f(3)=0,则f(-1)=______.
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5.若 (f(x),f'(x))= 1,则 f(x) 没有重根。( )
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6.设f(x)=x2 bx c,且f(-1)=f(3),则( )A、f(1)>c>f(-1)B、f(1)f(-1)>cD、f(1)
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7.设f(x)=https://bgk-photo.cdn.bcebos.com/baidu/pic/item/4e4a20a4462309f74ac1c2807a0e0cf3d6cad6f2.jpg,若f
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8.已知f(x)= ax+b,且f(-1)=2,f(1)=-2,则f(x)=( )
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9.若A . f(3) f(4) > 0 B . f( - 3) - f( - 2) < 0 C . f( - 2) f( - 5) < 0 D . f(4) - f( - 1) > 0
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10.若f(x)是R上周期为5的的奇函数,且满足f(1)=1, f(2)=3, 则f(8)-f(4)=( )