(2008•卢湾区二模)不等式2−xx+3>1
(2012•卢湾区二模)不等式|x-2|≤1的解集是______.
(2011•卢湾区二模)化简:12−1−(3+2)
(2009•卢湾区二模)方程3+2x=x
(2011•卢湾区二模)在(2x+1x
(2008•卢湾区二模)函数f(x)=2x+1-1(x>0)的反函数f-1(x)=______.
(2009•卢湾区二模)在方程x
(2008•卢湾区二模)原子和分子的根本区别在于( )
(2008•卢湾区二模)在下列各星球中,属于恒星的是( )
(2009•卢湾区二模)若函数f(x)=2sin
2011卢湾区二模数学(理科)
(2009•卢湾区二模)已知f(x)=1−x,当θ∈(5π4,3π2)时,f(sin2θ)-f(-sin2θ)可化简为(
不等式f(x)=2+xx−1