求高人解英文的三角函数题!A fence post is located 54 feet from one corner of a building and 39 feet from the adjacent corner.Fences are put up between the post and the building corners to form a triangular garden area.The 39-foot fence mak

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求高人解英文的三角函数题!Afencepostislocated54feetfromonecornerofabuildingand39feetfromtheadjacentcorner.Fencesa

求高人解英文的三角函数题!A fence post is located 54 feet from one corner of a building and 39 feet from the adjacent corner.Fences are put up between the post and the building corners to form a triangular garden area.The 39-foot fence mak
求高人解英文的三角函数题!
A fence post is located 54 feet from one corner of a building and 39 feet from the adjacent corner.Fences are put up between the post and the building corners to form a triangular garden area.The 39-foot fence makes a 54° angle with the building.How long is the building wall?

求高人解英文的三角函数题!A fence post is located 54 feet from one corner of a building and 39 feet from the adjacent corner.Fences are put up between the post and the building corners to form a triangular garden area.The 39-foot fence mak
x^2+39^2-2*39cos54°=55^2
x约等于68feet

求高人解英文的三角函数题!A fence post is located 54 feet from one corner of a building and 39 feet from the adjacent corner.Fences are put up between the post and the building corners to form a triangular garden area.The 39-foot fence mak A grey cat walking along a grey fence in a grey backyard.东英文的帮我看看什么意思! fence的意义? 那位高人指点一下,求弦公式和三角函数公式以及三角函数各角的换算定律 问两道改句子的题1、Everywhere was bright and sunny.(改同义句）_____ _____ bright and sunny _____.2、The fence was thirty yards long and three yards high.It was a _____ and _____ fence. 这个题的三角函数A W怎么求 三角函数的题 集求 求高人写一首关于圣诞节的英文诗. 求高人翻译英文：.在美国最受欢迎的运动 求高人翻译“瑞德琅”的英文（公司名字） 求歌名,懂英文的来就这三首,望高人鉴定,感激不尽 解三角函数题若sinA乘sinB等于1,求cos(A+B)的值为 求角A的三角函数是什么意思 高中三角函数 若干题 求高人解答 在线等!急!1.cos20*cos40*cos60*cos802.求(1/cos50) +tan10的值 3.求定义域 y=lg(sinx-cosx) y=根号2cosx+1/tanx 请教一道英文组句子的题,谢谢!没有凑出完整的句子,求高人指导,谢谢! 急!求高人解 高中数列题! 求“蒸菜”的英文说法.最好哪位高人能把浏阳蒸菜用英文介绍一下. 求西餐中的调料,辣酱油的英文哪位高人知道西餐中的辣酱油英文是什么呀?