吴小龙1 春芽
共回答了20个问题采纳率:90% 举报
1年前
欢喜如梦 幼苗
共回答了13个问题采纳率:92.3% 举报
回答问题
已知tanc+sinc=a,tanc-sinc=b,求证:(a²-b²)²=16ab
1年前1个回答
在三角形ABC中,已知向量AB*向量AC=9,向量AB*向量BC=-16 求 sin(A-B)/sinc
已知如图圆O中弦AB=16,点C在圆O上且sinC=4/5,求圆O的半径长
1年前3个回答
如图所示,在圆O中,弦AB=16,点C在圆O上,且sinC=4/5,求圆O的半径
you have been playing golf since you were 16 years old
My brother went to Ebgland at 16 and he--there since then 横线
已知sinC=16/15,cosA=-5/13,cosB=3/5,a=5 怎样求三角形ABC面积?
Since the gene, called DAF-16 in worms, was found in many an
my brother went to england at 16 and he __ there since then.
1年前2个回答
Since the gene , called DAF-16 in worms, was found in many a
My brother went to England at 16 and he___there since then.
词汇与结构16.Since he left the university,he _____ in an accounti
在三角形ABC中,cosA=(-5/13) cosB=3/5 sinC=16/65 设BC=5 求三角形ABC面积
填空 16.We ___________ (know) each other since we were young.1
英语翻译I‘ve been keeping diary since I was 16 and I'm 65.I have
1年前5个回答
|AB|sinB=|AC|sinC怎么算?
1/2ab×sinc?什么意思?
AC/AB=SinB/SinC怎么推,这是公式吗
△2ABC周长为根号2+1 且sinA+sinB=根号2sinC 求AB长 若△面积为1/6sinC 求c的度数
你能帮帮他们吗
我写的雪花作文结尾,大家帮忙改改
Now let me tell you how come.这句话哪个地方错了呀!
下列数据中,符合事实的是?A:初中物理课本中一张纸的厚度为1mm B:一个家用电饭煲的额定功禄为800W C:普通鸡蛋的
七年级新目标英语.下册,人教版56页
(2011•白下区二模)计算:(-2a2b)3=______.
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某语文老师为党的九十一华诞献礼,拟写了一副对联,上联是:“蛟龙入海长民族志气”。请选出能够作为下联的语句。
下面是网友仿照《沁园春•雪》对雾霾天气的调侃:“北京风光,千里朦胧,万里尘飘,望三环内外,浓雾莽莽,鸟巢上下,阴霾滔滔……”请另选一首诗词或者歌词,仿其形式,调侃一下雾霾天气。 《再别康桥》:悄悄的风走了,不如雾呼呼的来。风挥一挥衣袖,带不走一粒尘埃。
下列关于玻璃钢和塑料所属材料类型正确的是( )
求函数y=√x+1的值域
Excel A4-A3 ,A3-A2 ,A2-A1以此类推 所得差值的平均值的函数