(1)计算: ( 3 + 1 ) 0 + | - 2 | - 3 - 1
(2)解不等式组: 2 x + 1 < x + 5 4 x > 3 x + 2 .
先化简再求值:,其中.
计算:
(本题7分) 计算:(2011)°+ []32sin60°3tan30°+|1|