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2018年秋九年级数学下册第二十八章锐角三角函数28.2解直角三角形及其应用28.2.2应用举例第2课时与方位角、棱角有关的解直角三角形应用题问题课件（新版）新人教版.ppt

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2018年秋九年级数学下册第二十八章锐角三角函数28.2解直角三角形及其应用28.2.2应用举例第2课时与方位角、棱角有关的解直角三角形应用题问题课件（新版）新人教版.ppt_第1页
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