赚现金
计算: 9 - ( π - 1 ) 0 = .
计算: | - 2 | + 12 - 3 .
计算: 9 + ( 1 2 ) 0 - | - 3 | + 2 cos 60 ° .
计算: | - 2021 | + ( - 3 ) 0 - 4 .
计算: ( - 1 ) 2021 + 8 - 4 sin 45 ° + | - 2 | .
计算: ( 2 - 1 ) 0 + | - 3 | - 27 3 + ( - 1 ) 2021 .
计算: 25 - | - 7 | + ( 2 - 3 ) 0 .
计算: ( - 1 2 ) - 1 + tan 60 ° - | 2 - 3 | + ( π - 3 ) 0 - 12 .
计算: ( 2021 π ) 0 + ( 1 4 ) - 1 - ( - 4 ) + 2 3 cos 30 ° .
计算: ( 3 . 14 ﹣ π ) 0 - 27 + | 1 - 3 | + 4 sin 60 ° .
计算: − 1 2 + ( π − 2021 ) 0 + 2 sin 60 ° − | 1 − 3 | .
下列计算正确的是 ( )
2 + 3 = 5
( − 3 ) 2 = ± 3
a ⋅ a − 1 = 1 ( a ≠ 0 )
( − 3 a 2 b 2 ) 2 = − 6 a 4 b 4
计算: 9 1 2 + | 1 − 2 | − 2 − 1 × 8 .
计算: ( − 1 2 ) 0 + | 1 − 2 | − 8 .
计算: | 2 − 1 | + cos 45 ° − ( 2 ) − 3 + 8 .
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