赚现金
计算: 3 tan 30 ° + 8 3 + ( - 1 2 ) - 1 + ( - 1 ) 2018
计算: ( 3 - π ) 0 - 6 cos 30 ° + 27 - ( 1 2 ) - 1 .
计算: - 2 2 + ( 3 - π ) 0 + | 1 - 2 sin 60 ° | .
计算: - 3 2 + 6 cos 45 ° - 8 + | 2 - 3 |
计算: 27 + | 1 - 3 | + ( 1 2 ) - 1 - 2016 0 .
(1)计算: 9 × 3 - 2 + ( - 1 ) 3 - 4 ;
(2)解不等式组 x + 1 > 0 x + 4 > 3 x ,并求出它的整数解.
计算:
(1) 3 2 - 9 - | - 2 | × 2 - 1
(2) ( a + 1 ) 2 + 2 ( 1 - a )
(1) 16 - | - 3 | + ( - 4 ) × 2 - 1 ;
(2) ( x + 1 ) 2 + x ( x - 2 ) - ( x + 1 ) ( x - 1 )
(1) 6 ÷ ( - 3 ) + 4 - 8 × 2 - 2 ;
(2)解不等式组: x - 1 < 2 x + 1 2 ⩾ 1 .
计算: 16 + ( 2 - 2 ) 0 - ( - 1 2 ) - 2 + | - 1 |
计算: 2016 0 - | - 2 | + ( 1 3 ) - 1 + 2 sin 45 ° .
计算: ( 1 2 ) − 1 + tan 30 ° ⋅ sin 60 ° = ( )
A. − 3 2 B.2C. 5 2 D. 7 2
计算: 2 − 1 × 12 + 2 cos 30 ° = .
计算: ( π − 3 . 14 ) 0 + 2 cos 60 ° = .
计算: 2 − 1 + | − 5 | − sin 30 ° + ( π − 1 ) 0 .
试题篮