计算:|1﹣|+(π﹣3.14)0﹣2sin60°+()﹣2.

计算:|1|+π3.1402sin60°+2

答案

【考点】实数的运算;零指数幂;负整数指数幂;特殊角的三角函数值.

【分析】原式第一项利用绝对值的代数意义化简,第二项利用零指数幂法则计算,第三项利用特殊角的三角函数值计算,最后一项利用负整数指数幂法则计算即可得到结果.

【解答】解:原式=1+12×+4

=4

 

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