2-根号5的绝对值+0.2×根号900

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2-根号5的绝对值+0.2×根号900

2-根号5的绝对值+0.2×根号900
2-根号5的绝对值+0.2×根号900

2-根号5的绝对值+0.2×根号900
|2-√5|+0.2×√900
=√5-2+0.2×30
=√5-2+6
=√5+4

2-根号5的绝对值+0.2×根号900
=根号5-2+0.2×30
=根号5-2+6
=4+根号5

您好!
由于√5>2,所以|2-√5|=-(2-√5)=√5-2
所以原式=√5-2+0.2×√900
=√5-2+0.2×30
=√5-2+6
=√5+4
祝你学习进步O(∩_∩)O哈!

|2-根号5|+0.2×根号900
=根号5-2+0.2*10*3
=根号5-2+6
=根号5+4

︱2-√5︱+0.2×√900
=√5-2+6
=4+√5

2-|√5|+0.2×√900
=2-√5+1.2×30
=38-√5