问题
解答题
(1)计算:
(2)已知2a=3b,求
|
答案
(1)原式=
×2
+2 2
×3 2 3
=1+3 2
=
;5 2
(2)∵2a=3b,
∴a=
b,3 2
∴原式=
=
b+b3 2
b3 2
=
b5 2
b3 2
.5 3
(1)计算:
(2)已知2a=3b,求
|
(1)原式=
×2
+2 2
×3 2 3
=1+3 2
=
;5 2
(2)∵2a=3b,
∴a=
b,3 2
∴原式=
=
b+b3 2
b3 2
=
b5 2
b3 2
.5 3