已知向量a等于(3,-1),b等于(5,y)若a//b,则y等于?
人气:373 ℃ 时间:2020-04-22 05:40:54
解答
-5/33/5=-1/y谢谢,怎么求的?运算公式是?向量平行满足x1/x2=y1/y2懂了,谢谢,
推荐
- 已知向量a=(2,-1,3),b(-1,4,-2),C=(7,5,入),若a,b,c三个向量共面,则实数入等于
- 已知向量a=(1,2),a·b=5,|a-b|=2√5,则|b|等于
- 已知向量a=(5,-2),向量b=(-4,-3),向量c=(x,y),若向量a+2向量b+3向量c=0,则向量c等于
- 已知平面向量a,b满足a⊥b,a(1,-2).|b|=3√5,则向量b等于
- 已知向量a等于(-2.3).b=(5.x).且a⊥b.则x=? a=-15分之2 b=-2分
- It's March now.Spring is coming.Everything is beautiful in the park.There's a lake in the park.There are some boats in t
- Excuse me,could you please tell me the way to the post office?Sure.Go down the road and then turn
- 已知某油密度=0.795 1升=3.2元 那么1公斤=?元 (求解,要过程)
猜你喜欢