Question

（2012•金東區(qū)一模）計(jì)算：|-3|+

3

•tan30°-（2010-π）⁰．

Answer 1

分析：本題涉及絕對(duì)值、三角函數(shù)、零指數(shù)冪3個(gè)考點(diǎn)．在計(jì)算時(shí)，需要針對(duì)每個(gè)考點(diǎn)分別進(jìn)行計(jì)算，然后根據(jù)實(shí)數(shù)的運(yùn)算法則求得計(jì)算結(jié)果．

解答：解：|-3|+

3

•tan30°-（2010-π）⁰
=3+

3

×

3

3

-1                                               
=3+1-1
=3．

點(diǎn)評(píng)：本題考查實(shí)數(shù)的綜合運(yùn)算能力，是各地中考題中常見的計(jì)算題型．解決此類題目的關(guān)鍵是熟練掌握負(fù)整數(shù)指數(shù)冪、零指數(shù)冪、二次根式、絕對(duì)值等考點(diǎn)的運(yùn)算．