组卷网>知识点选题>利用周期性求函数值
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2 . 定义在实数集R上的奇函数fx)满足fx+2)=﹣fx),且当x∈[﹣1,1]时,fx)=x,则下列正确的是(   )
A.f(2018)=0
B.函数fx)的最小正周期为2
C.当x∈[﹣2018,2018]时,方程fx)=eqId49b7b111d23b44a9990c2312dc3b7ed9有2018个根
D.方程eqId9eba2b6674904da7b2b613d0fd13f533有5个根
4 . 已知eqId144eff5c0e4649138a21f2b1b6a06907是定义在eqId7dcd2312d0bf4bb1befdfcc170e45791上的周期为eqId96a8b193485b4870badf38cd3fb7adfc的奇函数,若当eqId85eb53575dd34c888bbb489e15f1b57e时,eqIdc068af3bfdca4e6f8d8c4a57384228b1,则eqId08ae1785115b43b9b2c4490254424220(   )
A.eqIdbeffaaf8d5cd43cf8375210d69fce6beB.0C.1D.2
5 . 已知eqId6f13759e937144069819aed2ae5a1057是定义域为eqId4758fc80638b4cac8e16b01028e6ab78的奇函数,满足eqIdada8f5e7894c4f3a84622aad85222ade,若eqId2488b570b73e40a7a76579bac2a7a0e3,则eqIdc2d570ae8a654bba8c6398421ef406ad___________.
7 . 已知函数eqId4837c94ef0ff4dcf9b1dda4df363275a的定义域为eqId7dcd2312d0bf4bb1befdfcc170e45791,对任意eqId6fc94f6e181444c6b809fb393eb8fae6eqId1b2d1e17e9514c41aa053b662d4b61d7,当eqId0959c4c0e67043cc82bcf9d659c987f5时,eqIdce9f42e3aca54b239656fc01edeab6ae,则eqId40f4eb9171e742bda20e65a662dd13bc______
8 . 函数eqId6f13759e937144069819aed2ae5a1057定义域为R,且eqIda668ded9954f4fba82395c569d0d6550,若函数eqId996893f38aac40ab9a1d1fcb387c02da的图象关于eqId304afd9f2ec84e138ab539275a5edd19对称,且eqId41b90e2fe6114af0b8c33f6ba459c3e2,则eqId2843a051baa74514b8e65606e9ec8989=(   )
A.3B.-3C.6D.-6
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