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计算: 3 25 + ( - 2 ) 3 - ( π - 3 ) 0 .
计算: 9 + 2 sin 60 ∘ + | 3 - 3 | - ( 2016 - π ) 0 .
计算: | - 3 | - 2016 + sin 30 ∘ 0 - - 1 2 - 1 .
计算: | - 2 | - 2 cos 60 ∘ + 1 6 - 1 - ( π - 3 ) 0 .
计算:
(1) ( 3 . 14 - π ) 0 = ;
(2) 2 cos 45 ° = ;
(3) - 1 2 = .
计算: ( - 1 2 ) - 1 + 8 3 + 2 cos 60 ° - ( π - 1 ) 0 .
(1)计算: | 1 - 3 | - 2 × 6 + 1 2 - 3 - ( 2 3 ) - 2 ;
(2)已知 m 是小于0的常数,解关于 x 的不等式组: 4 x - 1 > x - 7 - 1 4 x < 3 2 m - 1 .
计算: 27 + ( 1 3 ) - 2 - 3 tan 60 ° + ( π - 2 ) 0 = .
计算: 2 sin 60 ° + ( - 1 3 ) - 2 + ( π - 2020 ) 0 + | 2 - 3 | .
计算: ( 1 3 ) - 1 + ( π - 3 ) 0 = .
计算或化简:
(1) 2 sin 60 ° + ( 1 2 ) - 1 - 12 .
(2) x - 1 x ÷ x 2 - 1 x 2 + x .
计算: ( - 2 ) 0 + ( 1 3 ) - 1 - 9 .
(1) ( - 2 ) 2 + | - 5 | - 16 ;
(2) a - 1 a - b - 1 + b b - a .
(1)计算: ( - π ) 0 + ( 1 2 ) - 1 - 3 sin 60 ° ;
(2)解不等式组: 3 x - 1 ⩾ x + 1 , x + 4 < 4 x - 2 ·
计算: 9 + ( - 2 ) 2 - ( π - 3 ) 0 .
试题篮