问题
解答题
化简: (1)
(2)
(3)
(4)-
|
答案
(1)
=0.3;0.32
(2)
=0.36
=0.6;0.62
(3)
=|-(-
)21 7
|=1 7
;1 7
(4)-
=-|-π|=-π.(-π)2
化简: (1)
(2)
(3)
(4)-
|
(1)
=0.3;0.32
(2)
=0.36
=0.6;0.62
(3)
=|-(-
)21 7
|=1 7
;1 7
(4)-
=-|-π|=-π.(-π)2