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【解三角形】余弦定理变形求角不等式法求面积最值
【解三角形】余弦定理变形求角不等式法求面积最值
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App06:25![[解三角形]齐次式正弦定理余弦定理算两次求外接圆的半径](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/24773bc14de24239a1a4133b49a2f37a~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=2025020311083166298899F3C3779BBCDD&requestFrom=704&version_code=80402&x-expires=1770088111&x-signature=h%2FhvVp569cP2ffDanL4VkWJD5Ag%3D)
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