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计算：（-ab）³-a³b³
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已知如图△ABC中∠C.=90°AB=10BC=61计算AC的长度2计算AB边上的中线CD的长度.3
计算3a·2b的结果是
3ab
6a
6ab
5ab
已知AB=2延长AB到C.使BC=3ABD.为BC的中点E.为AB的中点画图并计算DE的长
计算1ab22·－a3b3÷－5ab
对于A-B两点下面的计算公式中是正确的
ΔXAB=DAB²sinαAB
ΔXAB=DAB²cosαAB
ΔYAB=DAB²sinαAB
ΔYBA=DBA²cosαAB
计算仪表的计算方式是.
模拟计算
数字计算
AB都对
AB都不对
计算·3ab2=9ab5
计算3a•2b的结果是
3ab
6a
6ab
5ab
假设A证券的预期报酬率为20%标准差为40%B证券的预期报酬率为12%标准差为13.3%投资者将25
逻辑计算中因为A+AB=A所以AB=0
计算AB两地节约数的一般公式为
2PA＋2PB
PA＋AB＋PB
PA＋PB－AB
2PA＋PB－AB
计算3a·2b的结果是
3ab
6a
6ab
5ab
计算3
2b的值为（ ） A.3ab
6a
6ab
5ab
下列计算正确的是
2+a=2a
2a﹣3a=1
3a+2b=5ab
5ab﹣ab=4ab
孔洞型像质计的灵敏度计算表达式为
(AB/2)^(1/2)
(2/AB)^(1/2)
(AB/2) ²
(2/AB) ²
假设A证券的预期报酬率为20%标准差为40%B证券的预期报酬率为12%标准差为13.3%投资者将25
函数RightAB计算中心124的值为
AB计
AB计算
中心12
心12
计算﹣3a•2b正确的结果是
﹣6ab
6ab
﹣ab
ab
计算2a•ab=
2ab
2a
2
b
3ab
3a
2
b
计算ab2的结果是
2ab
a
2
b
a
2
b
2
ab
2
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