|3tan30°-1|-4（sin²60°-1）+∫2×cos45°

来源：学生作业学帮网编辑：学帮网时间：2024/05/27 19:21:33

|3tan30°-1|-4（sin²60°-1）+∫2×cos45°
=|√ 3-1|-4（3/4 -1）+∫2×√ 2 /2
=√ 3 -1-3 +4+1
=√ 3 +1