设a为锐角,若sina=二分之根号三,则a=?若tana=三分之根号三,则a=?
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![设a为锐角,若sina=二分之根号三,则a=?若tana=三分之根号三,则a=?](/uploads/image/z/6861295-55-5.jpg?t=%E8%AE%BEa%E4%B8%BA%E9%94%90%E8%A7%92%2C%E8%8B%A5sina%3D%E4%BA%8C%E5%88%86%E4%B9%8B%E6%A0%B9%E5%8F%B7%E4%B8%89%2C%E5%88%99a%3D%3F%E8%8B%A5tana%3D%E4%B8%89%E5%88%86%E4%B9%8B%E6%A0%B9%E5%8F%B7%E4%B8%89%2C%E5%88%99a%3D%3F)
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设a为锐角,若sina=二分之根号三,则a=?若tana=三分之根号三,则a=?
设a为锐角,若sina=二分之根号三,则a=?若tana=三分之根号三,则a=?
设a为锐角,若sina=二分之根号三,则a=?若tana=三分之根号三,则a=?
60和30