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已知△ABC的面积为2,且.(1)求tanA的值;(2)求的值.
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已知△ABC的面积为2,且
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEoAAAAWCAYAAABnnAr9AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAISSURBVFhH7VhJksMgDORdOfg5ufMTn3nIXHlI
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5P4esE5kJYeTcp7jiTQkBrkVxWRTiKirPeNqPEmPYnbmW5cJKepbyyfytnr37MXAJu5R/4irI4dG
lfZmYNE2vrKg/UEX/58oyoIxic+w12rihCxYP89Vj5VjlR12iWPe7l2u5zxot3OzNivIf7iZBVSs
b0DUBmZRsDRE5c0D1mvkEAO7O61qhJX2a0g93pu1AJGaIGVJVG4MZ4pCJlP3am1i8WXdqDKKCEoJ
RCk0ViSJVKsfiZo8eYb2CUql9Ypyc6qNG4WGENzqZ7hIMhQ56C6HqAHWNK4bDuPymz2nPaoMWvlV
dz1w3cIu+q71BKTup0So0SyxsqeRozfCimr6CxNiS8/nUKu2UpTV8cNGOSF+KCDnj2toH+PkM8YK
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k3TfYtX3lzaSNfsl8FNSutjU9ScKQaFBU6RU75qxcwjJfw5ZCQsLg+OpW49fn4M0UW8OCD8+aSaL
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AABJRU5ErkJggg==
)
.
(1)求tanA的值;
(2)求
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIgAAABFCAYAAACRzK44AAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
的值.
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jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAOJJREFU
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SEvtluENhCAMhXsbuY9bMIRLsIMDMAeJO7BErwWPAxToKf67JpeYYD6ejz56L6SCp4rhTxU8BfaO
eLgzqADYHgRth+1HcItaGXQeSc+0wSg+oHM7OAi2eiQ8NcHq0bZ8FT/geSJ9P1hlwgnUyouQ/EqA
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