计算:(1)|1-根号16|-三次根号-64(2)三次根号8-(π-2)^0-|1-根号2|(2)|1-根号2|+|根号2-根号3|+|根号3-2|+|根号2-根号5|
问题描述:
计算:(1)|1-根号16|-三次根号-64
(2)三次根号8-(π-2)^0-|1-根号2|
(2)|1-根号2|+|根号2-根号3|+|根号3-2|+|根号2-根号5|
答
您好:
|1-根号16|-三次根号-64
=l1-4l+4
=3+4
=7
(2)三次根号8-(π-2)^0-|1-根号2|
=2-1-(√2-1)
=1-√2+1
=2-√2
2)|1-根号2|+|根号2-根号3|+|根号3-2|+|根号2-根号5|
=√2-1+√3-√2+2-√3+√5-√2
=√5-1
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