(本小题满分14分，每小题7分) 化简下列各式： (1) ； (2) ．

(本小题满分14分，每小题7分)

化简下列各式：

(1) ； (2) 6ec8aac122bd4f6e ．

(1)0 （2）1 【解析】 (1) 【解析】原式=························································ 2分 =·················································· 4分 =·········································································· 6分 = 0··················································································· 7分 (2) 【解析】原式=············································ 4分 =1···································· 7分

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