高校问答逗比的战队名字:请数学和英语高手帮忙
来源：百度文库 编辑：高校问答 时间：2024/05/03 14:52:43
c) Find the integral from -2 to 2 on this function:
[e^-1 + 4]
4) Vector A has the coordinates [3,1], and vector B has [-1,1].
a) Is the angle between the vectors 90 degrees? Find out by calculation
b) L, a straight line, runs through (1, 3/2) and is parallel with A.
[e^-1 + 4]
4) Vector A has the coordinates [3,1], and vector B has [-1,1].
a) Is the angle between the vectors 90 degrees? Find out by calculation
b) L, a straight line, runs through (1, 3/2) and is parallel with A.
对函数e^-1 + 4在-2到2上积分.
向量A的坐标为[3,1],向量B的坐标为[-1,1].
向量A和B的辐角是否在90度之间,给出计算过程.
L是过(1, 3/2) 的一条直线,且与直线A平行.
我可以给你翻译一下,这些题都不难,但具体的做题方法都忘了!~不好意思!~
1.求[e^-1 + 4] 在区间(-2,2)上的积分
2.向量A的坐标为[3,1],向量A的坐标为[-1,1].
问: a)向量A和B的角度是90度吗? 给出算法.
b)L是穿过点(1, 3/2)并与向量A平行的直线(这个好像没说完喏~!)