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2 . 设m为给定的实常数,若函数yfx)在其定义域内存在实数eqId761b2917a82b4524b8dbab7e6380f014,使得eqIdc91a6a7fee624f979b029ad5c9c5643d成立,则称函数fx)为“Gm)函数”.
(1)若函数eqIdc849966698b946dfb67f33df021d9c55为“G(2)函数”,求实数eqId761b2917a82b4524b8dbab7e6380f014的值;
(2)已知eqId9c3fada03df048bbbe7aec1a834529d3为“G(0)函数”,设eqIdc8ffb8015aaf43e7b036afe7fc44a4fb.若对任意的eqId735b8047beee4dee870fc72ae837a245eqIddb81f905534a4e94a752f5fa22b1e4c4,当eqId70c08d40596445378a3ebc3942e99852时,都有eqId7802da76f0b44acfa225d40aef91017a成立,求实数t的最大值.
3 . 若eqId84baf5260a714df9a42e9e3daf01ca4a,则eqIdb1fa2721d3ac4af8a8fcb76e459e7445eqId7d2c87ca81334595943edeaea9aee38a在同一坐标系中的图象大致是(   )
A.说明: figureB.说明: figure
C.说明: figureD.说明: figure
4 . 已知函数eqId936950a74dc1478992218de1326ec9bb关于eqIda9cd3f94eb8045438f75e9daccfa7200的方程eqIda52818b3ce5149e889b5529d1c3975a7的实数解个数,下列说法正确的是(   )
A.当eqId27367992b00d490ab229d83e2f813373时,方程有两个实数解
B.当eqIdac0b9fd20c0b4a3fa651f0b71ae4476a时,方程无实数解
C.当eqId8dae0bdb2e8843d8ac20617da451584e时,方程有三个实数解
D.当eqIda08ab827b0b441e49f8cb45dd3e44b26时,方程有两个实数解
单选题 | 较易(0.85) | 2021·云南昆明市·高二期末(文)
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5 . 函数eqIdaf6ade4cd7ae4eb68aea58f812d88a3b的图象大致为(   )
A.说明: figureB.说明: figure
C.说明: figureD.说明: figure
6 . 函数eqId1e0dcc4eac0d483f90eddd13ab5e7331的图像大致为(   ).
A.说明: figureB.说明: figureC.说明: figureD.说明: figure
7 . 函数eqIdee68914daddc4abc9085d955f5e29e1d的图象大致是(   )
A.说明: figureB.说明: figureC.说明: figureD.说明: figure
9 . 已知函数eqId4837c94ef0ff4dcf9b1dda4df363275a满足eqId6709283711bf4ae39fde99d031d3bb28,有eqIdc537faf7b36b4532a0d30d5c6af0ed9e,且eqId429cfea4f7ba4b7ca55d421ab78c80b1,当eqId79442dcac7014b1e80b9dd41cb4ba0fa时,eqId9dabf5671f9b419f834ab0104adc56df.当eqIdb9368f33e0b045ddb484050d37c3b109时,方程eqIdafe7934f73544bdaa780d3e1877821fe的所有根的和为________
10 . 函数eqIdda2bc328957b41e39e21f0ad8e9ed215eqId540a0c05d6534c6395086d4d5cc31d3d的图象在区间eqIda56932c1ab954f3589e9d308e90bbdd8上交点的横坐标之和为(   )
A.6B.4C.8D.12
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