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如图,在等腰直角三角形ABC中,∠C=90°,AC=6,D是AC上一点,若tan...
如图,在等腰直角三角形ABC中,∠C=90°,AC=6,D是AC上一点,若tan∠DBA=
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,则AD的长是( )
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A.
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B.2
C.1
D.2
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102724095182576/SYS201311031027240951825008_ST/2.png)
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