写出反义词
崭新—____ 辽阔—____ 锲而不舍—____ 精细—____
下列说法不正确的是( )
There ________ a dog, two ducks and three cats in the lost and found office.
求下列函数的值域:(1)y=1+sinx+cosx+ 12 sin2x x∈﹣π,π;(2)y=﹣cos3xcosx.
下列式子是一元一次不等式的是( )