问题
解答题
(1)计算(
(2)若规定新的运算:a*b=
|
答案
(1)原式=2+2-
-1-53
=-2-
;3
(2)原式=(
ab2c)-11 4 (-2a-4bc-1)2
=
•1
ab2c1 4 1 4a-4b2c-2
=1 a-3b4c-1
=
.a3c b4
(1)计算(
(2)若规定新的运算:a*b=
|
(1)原式=2+2-
-1-53
=-2-
;3
(2)原式=(
ab2c)-11 4 (-2a-4bc-1)2
=
•1
ab2c1 4 1 4a-4b2c-2
=1 a-3b4c-1
=
.a3c b4