英语出的数学,求解答.
题目
英语出的数学,求解答.
1.a plane takes off heading north-west and is told to take a left-hand turn at 5000 feet. What bearing is the plane now headed on?
2.the difference between a number and 12 is greater than the product of and 9 but no more than the quotient of 108 and 2. what range of values satisfy this statement?
3.Givan that a varies as the cube of b and a=4 when b=2,find the value of k and the value of a,when b=3
答案
一架飞机起飞朝向西北方前进,被告知向左转,飞机此时的方向是向西南方向.
不知道是不是这样啊 ,其他的看不懂
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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