问题
解答题
(1)计算2×(-3)+(-3)°-
(2)化简:(1+
|
答案
(1)原式=-6+1-2=-7;
(2)原式=(
+m-1 m-1
)×1 m-1 (m+1)(m-1) m
=
×m m-1 (m+1)(m-1) m
=m+1.
(1)计算2×(-3)+(-3)°-
(2)化简:(1+
|
(1)原式=-6+1-2=-7;
(2)原式=(
+m-1 m-1
)×1 m-1 (m+1)(m-1) m
=
×m m-1 (m+1)(m-1) m
=m+1.