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求下列函数的定义域:
(1)eqId49a1524a18fe4d04a8befd78a2973251
(2)eqId26563d6860bc44a79ba9291bba261cad
(3) eqId33b05975107d492799740f42df491b71.
同步
下列各组中的两个函数是否为同一个函数?
(1)eqId52a158d6948743e0aa36367b5f061243eqId7ccb91b7be8a434195ece50e0fd4951f
(2)eqId51d4a5ee137a48aba45407157145126aeqIdb3c0764de992437e9dcc7679baabdfad
(3)eqId293f94499e49487e81d30019a2d74ac1eqIdb8006756d6d54eb29dec66a77dddfd62
(4)eqId17f28a8e1c164f61bfc3c5509ba94a74eqId7156d93e7c4e4bae9f44dc2d07a7ab91.
已知集合eqIde762d32fe22b491c8235cdef036fcd9beqIdd166a549eb794ce1bc6dd741ea3b6a42,则eqIdd321c2c4c0c74ea09a1712449cceca7e(   )
A.eqIdf8f7382000ed45ed818b412086044e0cB.eqIdc589be72bbc249dc854581960e8a46ecC.eqId8f1c76fa122749c092d98cfbc527c1c3D.eqId0ffe76c8043e4941ad0f224873dfaa80
已知函数eqIdd3adaa166d1f4b8e98aae8f5c59d621d,则eqId144eff5c0e4649138a21f2b1b6a06907的图象大致为(   ).
A.说明: figureB.说明: figure
C.说明: figureD.说明: figure
更新:2020/09/21 |题型:单选题 |组卷:127|引用[50]
函数y=eqId45106c18cf72451cb26d0ba480de79cdsin2x的图象可能是
A.说明: figureB.说明: figure
C.说明: figureD.说明: figure
更新:2020/09/18 |题型:单选题 |组卷:13467|引用[72]
已知集合eqId3de748553c6a4ff699f602a207bcf489eqIda892023323f74d94bb8b3c16d9679f78,则集合eqIdc7e17aac3f664408a20c2c2cbb4f5426的子集的个数为________.
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