Question

計(jì)算下列各式:

(1);

(2)

Answer 1

思路分析:

第(1)小題將根式變?yōu)榉謹(jǐn)?shù)指數(shù)冪,也可以把分?jǐn)?shù)指數(shù)化為根式去做;第(2)小題將負(fù)分?jǐn)?shù)指數(shù)化為正分?jǐn)?shù)指數(shù),將小數(shù)指數(shù)化為分?jǐn)?shù)指數(shù).

(1)解法一:==

解法二: =

(2)解:(2)⁰+2^-2·(2-(0.01)^0.5

=1+×(-(

=1+×-.