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问题: 化简

化简 (9-2√{23-6√[10+4√(3-2√2)]})^(1/2)

解答:

解 原式=(9-2√{23-6√[10+4√(√2-1)^2]})^(1/2)
=√{9-2√[23-6√(6+4√2)]}=√{9-2√[23-6√(2+√2)^2]}
=√{9-2√[23-6(2+√2)]}=√{9-2√[11-6√2]}
=√[9-2√(3-√2)^2]=√[9-2(3-√2)]=√[3-2√2)]=√2-1.