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设f(x)=,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,...
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设f(x)=
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADsSURBVEhL7VXREcMgCGUydnIdl3EUR6EQT5Nr
K7GGas6Ld34kkTx58HhAgxYMwqEJQNETApKP/8kxZRQcAQBvBYjPuNB/iQN1gdxtgTIT6CkxLpdl
ZsrzzoCaUXBCZ207/q2sSB6FcgHJ7z4pNqEueuQL1UEE1gSIpGO/0HXMywQocEZn0rgMJLRJ20s9
t/avyCABbWLdi96il9womBWeO7ASPGEE9Yu+KXLBjOrK16bCb9/eBNtEdfehBWtUuLiNw3ZXJwW2
z7qpQEMctgxPa4dVqLN1WK1Gpg6rANk6bAXocdiLcjwPX296vwBzsfmVQAW7dAAAAABJRU5ErkJg
gg==
)
,又记f
1(x)=f(x),f
k+1(x)=f(f
k(x)),k=1,2,…,则f
2009(x)=( )
A.-
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACuSURBVDhP7ZSLDcMwCESZjJ1Yh2UYxaNQzglO
3To/palUqZasyNIF8PEw+YlFJ7R+UVzUmdi1vOfsI5s4EcU+Iq7BzOUvbrYedaM2BD5PW6xvzMV2
b5B1Y+S8zN4X1d1YxhfH6nM+59yx+jSjACnYaOcl1WxdcWUMKYQS8vFqPhflIG1d2DcFeA5SP+do
kS0irz0u+UMVowSAbjIDH5d+Bb+WAYA436p0ZqT8UZAeDDeKw2COEx0AAAAASUVORK5CYII=
)
B.
C.
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADvSURBVEhL7ZVbDsQgCEVZGXtyO27GpbgUBuw4
1sQHlfGjiU38aEqPcFEu0MYHNrLpBfDoCQHJx1oHe+bBEQDw2gFPyQZyTXjeGT1dVUkgZ/J717S8
B0//RvIoZUmQY/z1BCfldpbLUaPMv6DokUEFrMm3xAwzl+S544+kuG8/gQfOvHWcdBUM4CKJSCga
Jym5yZWk0x06cGkY5tOfT84TcrpApen3X+2XaFDVgTfF4X4ObqHhm+x2NG9rPr18mgCzE/VGwl+c
aDhvrE60BF91ospYJvN86kTrmSucyAKfOtEqXOVEK/DjRK0p8d6R+wFQxWO7CMgmTAAAAABJRU5E
rkJggg==
)
D.
相关试题
-
设 ,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAjCAYAAACKPxqrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtVW0ShCAIda/MdbyJ5/AUXoIFHav9gFxjrXFixh+V9ODBgweSuRHGQCPMjQDJrC1AKSA4wJD+
A12Aouc60VGA6I6P/UFsqIvoLwtUmYCAhXEOlphZnlcG1IyiZzql4+m3bAkDMOUMUt99UmxCXQpA
Ackgr12X0+5sBu7YL3Rt8zLJKFJGe9I4DMS0cdtzPXP7CzIoQFmsa9Fb9FIbBarCawcKzieMoH7R
N3lOmJGsfG0q/PbtTbBNVHdfmrBG19uw3dUpju2z7lSgIRt2GZ7WG1ahznbDajUy3bAKkO2GFYDu
DXtQjvvu803vJ4C2tgzW3QzTAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtld0NwyAMhNOVvQ6bMAdTsITrI6UECQPh56FqkHiIAh/2GXwvlnHsGoDvGscucFBkCdxbpoPY
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8aY11cgRvFT8lhTX4xtwJ5GXrlNfBhU4JIGE0DhIKUXOJG2eoMBRMIq3P96cO+TwgFLRr1vnH1El
qwdeFAc2ob/CiX/rWq5S1H8v6LQTaS1hiRNV+82sEw3BR50oM5ZGP2860XjkHU40A2860Si8y4lG
4I8TlRrj73bFN48gK6jjeJGpAAAAAElFTkSuQmCC
)
C.
D.
-
设 ,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAjCAYAAACKPxqrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtVW0ShCAIda/MdbyJ5/AUXoIFHav9gFxjrXFixh+V9ODBgweSuRHGQCPMjQDJrC1AKSA4wJD+
A12Aouc60VGA6I6P/UFsqIvoLwtUmYCAhXEOlphZnlcG1IyiZzql4+m3bAkDMOUMUt99UmxCXQpA
Ackgr12X0+5sBu7YL3Rt8zLJKFJGe9I4DMS0cdtzPXP7CzIoQFmsa9Fb9FIbBarCawcKzieMoH7R
N3lOmJGsfG0q/PbtTbBNVHdfmrBG19uw3dUpju2z7lSgIRt2GZ7WG1ahznbDajUy3bAKkO2GFYDu
DXtQjvvu803vJ4C2tgzW3QzTAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtld0NwyAMhNOVvQ6bMAdTsITrI6UECQPh56FqkHiIAh/2GXwvlnHsGoDvGscucFBkCdxbpoPY
+pw2D3cGNZO5Ax6CdWyK8HgyWT6zwkKJ5PvdI5wGD3s9W0JaWGQEfw5nkK4yTVxVi/wD8pYElMA9
8aY11cgRvFT8lhTX4xtwJ5GXrlNfBhU4JIGE0DhIKUXOJG2eoMBRMIq3P96cO+TwgFLRr1vnH1El
qwdeFAc2ob/CiX/rWq5S1H8v6LQTaS1hiRNV+82sEw3BR50oM5ZGP2860XjkHU40A2860Si8y4lG
4I8TlRrj73bFN48gK6jjeJGpAAAAAElFTkSuQmCC
)
C.
D.
-
设 ,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAjCAYAAACKPxqrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtVW0ShCAIda/MdbyJ5/AUXoIFHav9gFxjrXFixh+V9ODBgweSuRHGQCPMjQDJrC1AKSA4wJD+
A12Aouc60VGA6I6P/UFsqIvoLwtUmYCAhXEOlphZnlcG1IyiZzql4+m3bAkDMOUMUt99UmxCXQpA
Ackgr12X0+5sBu7YL3Rt8zLJKFJGe9I4DMS0cdtzPXP7CzIoQFmsa9Fb9FIbBarCawcKzieMoH7R
N3lOmJGsfG0q/PbtTbBNVHdfmrBG19uw3dUpju2z7lSgIRt2GZ7WG1ahznbDajUy3bAKkO2GFYDu
DXtQjvvu803vJ4C2tgzW3QzTAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtld0NwyAMhNOVvQ6bMAdTsITrI6UECQPh56FqkHiIAh/2GXwvlnHsGoDvGscucFBkCdxbpoPY
+pw2D3cGNZO5Ax6CdWyK8HgyWT6zwkKJ5PvdI5wGD3s9W0JaWGQEfw5nkK4yTVxVi/wD8pYElMA9
8aY11cgRvFT8lhTX4xtwJ5GXrlNfBhU4JIGE0DhIKUXOJG2eoMBRMIq3P96cO+TwgFLRr1vnH1El
qwdeFAc2ob/CiX/rWq5S1H8v6LQTaS1hiRNV+82sEw3BR50oM5ZGP2860XjkHU40A2860Si8y4lG
4I8TlRrj73bFN48gK6jjeJGpAAAAAElFTkSuQmCC
)
C.
D.
-
设 ,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAjCAYAAACKPxqrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtVW0ShCAIda/MdbyJ5/AUXoIFHav9gFxjrXFixh+V9ODBgweSuRHGQCPMjQDJrC1AKSA4wJD+
A12Aouc60VGA6I6P/UFsqIvoLwtUmYCAhXEOlphZnlcG1IyiZzql4+m3bAkDMOUMUt99UmxCXQpA
Ackgr12X0+5sBu7YL3Rt8zLJKFJGe9I4DMS0cdtzPXP7CzIoQFmsa9Fb9FIbBarCawcKzieMoH7R
N3lOmJGsfG0q/PbtTbBNVHdfmrBG19uw3dUpju2z7lSgIRt2GZ7WG1ahznbDajUy3bAKkO2GFYDu
DXtQjvvu803vJ4C2tgzW3QzTAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtld0NwyAMhNOVvQ6bMAdTsITrI6UECQPh56FqkHiIAh/2GXwvlnHsGoDvGscucFBkCdxbpoPY
+pw2D3cGNZO5Ax6CdWyK8HgyWT6zwkKJ5PvdI5wGD3s9W0JaWGQEfw5nkK4yTVxVi/wD8pYElMA9
8aY11cgRvFT8lhTX4xtwJ5GXrlNfBhU4JIGE0DhIKUXOJG2eoMBRMIq3P96cO+TwgFLRr1vnH1El
qwdeFAc2ob/CiX/rWq5S1H8v6LQTaS1hiRNV+82sEw3BR50oM5ZGP2860XjkHU40A2860Si8y4lG
4I8TlRrj73bFN48gK6jjeJGpAAAAAElFTkSuQmCC
)
C.
D.
-
设f(x)=
,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAjCAYAAABCU/B9AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACuSURBVDhP7ZSLDcMwCESZjJ1Yh2UYxaNQzglO
3To/palUqZasyNIF8PEw+YlFJ7R+UVzUmdi1vOfsI5s4EcU+Iq7BzOUvbrYedaM2BD5PW6xvzMV2
b5B1Y+S8zN4X1d1YxhfH6nM+59yx+jSjACnYaOcl1WxdcWUMKYQS8vFqPhflIG1d2DcFeA5SP+do
kS0irz0u+UMVowSAbjIDH5d+Bb+WAYA436p0ZqT8UZAeDDeKw2COEx0AAAAASUVORK5CYII=
)
B.
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADvSURBVEhL7ZVbDsQgCEVZGXtyO27GpbgUBuw4
1sQHlfGjiU38aEqPcFEu0MYHNrLpBfDoCQHJx1oHe+bBEQDw2gFPyQZyTXjeGT1dVUkgZ/J717S8
B0//RvIoZUmQY/z1BCfldpbLUaPMv6DokUEFrMm3xAwzl+S544+kuG8/gQfOvHWcdBUM4CKJSCga
Jym5yZWk0x06cGkY5tOfT84TcrpApen3X+2XaFDVgTfF4X4ObqHhm+x2NG9rPr18mgCzE/VGwl+c
aDhvrE60BF91ospYJvN86kTrmSucyAKfOtEqXOVEK/DjRK0p8d6R+wFQxWO7CMgmTAAAAABJRU5E
rkJggg==
)
D.
-
设f(x)=
,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAjCAYAAABCU/B9AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACuSURBVDhP7ZSLDcMwCESZjJ1Yh2UYxaNQzglO
3To/palUqZasyNIF8PEw+YlFJ7R+UVzUmdi1vOfsI5s4EcU+Iq7BzOUvbrYedaM2BD5PW6xvzMV2
b5B1Y+S8zN4X1d1YxhfH6nM+59yx+jSjACnYaOcl1WxdcWUMKYQS8vFqPhflIG1d2DcFeA5SP+do
kS0irz0u+UMVowSAbjIDH5d+Bb+WAYA436p0ZqT8UZAeDDeKw2COEx0AAAAASUVORK5CYII=
)
B.
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADvSURBVEhL7ZVbDsQgCEVZGXtyO27GpbgUBuw4
1sQHlfGjiU38aEqPcFEu0MYHNrLpBfDoCQHJx1oHe+bBEQDw2gFPyQZyTXjeGT1dVUkgZ/J717S8
B0//RvIoZUmQY/z1BCfldpbLUaPMv6DokUEFrMm3xAwzl+S544+kuG8/gQfOvHWcdBUM4CKJSCga
Jym5yZWk0x06cGkY5tOfT84TcrpApen3X+2XaFDVgTfF4X4ObqHhm+x2NG9rPr18mgCzE/VGwl+c
aDhvrE60BF91ospYJvN86kTrmSucyAKfOtEqXOVEK/DjRK0p8d6R+wFQxWO7CMgmTAAAAABJRU5E
rkJggg==
)
D.
-
设f(x)=
,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAjCAYAAABCU/B9AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/tVMENwzAIdFdmHTZhDqbwEhRIcOuGtERJ1U+RrMjSBc7cwU00WjUMXI1WBTqDDbiTQAOhvk0z
gxmNv54K2JOx4B882lrthgtifV4O8izMSbnfmOWLmeMxn765RX/D+dxYXcc55g5Ilhk1I6k3xv1R
alWwC4ENqQFR4XkMuTuBOm0fOIti9kxKP9cYmVkz7y2X+MHBRsGMzrgaXh/9anynYQaC2FXRmQyZ
7rrrRDlgjkNjdQeJaHB/o3N7rgAAAABJRU5ErkJggg==
)
B.
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtld0NwyAMhNOVvQ6bMAdTsITrI6UECQPh56FqkHiIAh/2GXwvlnHsGoDvGscucFBkCdxbpoPY
+pw2D3cGNZO5Ax6CdWyK8HgyWT6zwkKJ5PvdI5wGD3s9W0JaWGQEfw5nkK4yTVxVi/wD8pYElMA9
8aY11cgRvFT8lhTX4xtwJ5GXrlNfBhU4JIGE0DhIKUXOJG2eoMBRMIq3P96cO+TwgFLRr1vnH1El
qwdeFAc2ob/CiX/rWq5S1H8v6LQTaS1hiRNV+82sEw3BR50oM5ZGP2860XjkHU40A2860Si8y4lG
4I8TlRrj73bFN48gK6jjeJGpAAAAAElFTkSuQmCC
)
D.
-
设f(x)=
,又记f1(x)=f(x),fk+1(x)=f(fk(x)),k=1,2,…,则f2009(x)=( )
A.-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAAjCAYAAABCU/B9AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALpJREFU
OE/tVMENwzAIdFdmHTZhDqbwEhRIcOuGtERJ1U+RrMjSBc7cwU00WjUMXI1WBTqDDbiTQAOhvk0z
gxmNv54K2JOx4B882lrthgtifV4O8izMSbnfmOWLmeMxn765RX/D+dxYXcc55g5Ilhk1I6k3xv1R
alWwC4ENqQFR4XkMuTuBOm0fOIti9kxKP9cYmVkz7y2X+MHBRsGMzrgaXh/9anynYQaC2FXRmQyZ
7rrrRDlgjkNjdQeJaHB/o3N7rgAAAABJRU5ErkJggg==
)
B.
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABcAAAAjCAYAAAB/wZEbAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAPJJREFU
SEvtld0NwyAMhNOVvQ6bMAdTsITrI6UECQPh56FqkHiIAh/2GXwvlnHsGoDvGscucFBkCdxbpoPY
+pw2D3cGNZO5Ax6CdWyK8HgyWT6zwkKJ5PvdI5wGD3s9W0JaWGQEfw5nkK4yTVxVi/wD8pYElMA9
8aY11cgRvFT8lhTX4xtwJ5GXrlNfBhU4JIGE0DhIKUXOJG2eoMBRMIq3P96cO+TwgFLRr1vnH1El
qwdeFAc2ob/CiX/rWq5S1H8v6LQTaS1hiRNV+82sEw3BR50oM5ZGP2860XjkHU40A2860Si8y4lG
4I8TlRrj73bFN48gK6jjeJGpAAAAAElFTkSuQmCC
)
D.
-
设f(x)=cosx,f1(x)=f′(x),f2(x)=f′1(x),…,fn+1(x)=f′n(x),n∈N*,则函数y=|4f2008(x)•f2009(x)-1|的最小正周期为________.
-
设f(x)=cosx,f1(x)=f′(x),f2(x)=f′1(x),…,fn+1(x)=f′n(x),n∈N*,则函数y=|4f2008(x)•f2009(x)-1|的最小正周期为________.