Suppose `veca` and `vecb` are vectors such that a x b =(1,0,2). What is `vecb` x [-2a]?
- print Print
- list Cite
Expert Answers
cosinusix
| Certified Educator
calendarEducator since 2012
write156 answers
starTop subjects are Math and History
Using the properties of the cross product, `vec(u)Xvec(v)=-vec(v)Xvec(u)` and `(avec(u))Xvec(v)=a(vec(u)Xvec(v))`
`vecb X (-2vec a)=-(-2veca)X vecb``=-(-2)` `(vecaXvecb)=2(vecaXvecb)=2(1,0,2)`
Answer: `vecb X(-2vec a)=(2,0,4)`
Related Questions
- Suppose `veca` and `vecb` are vectors such that `veca` x `vecb`=(3,1,4). What is the cross...
- 1 Educator Answer
- The vectors `veca` and `vecb` are unit vectors such that a· b=1/2. Determine the value of j such...
- 1 Educator Answer
- If A=(1,2,4) and `vecA`+ `vecB`=(3,1,-2). What is B?
- 1 Educator Answer
- Which of the following are solutions to the equation (x-a)(x-b)=0?a) x= -a and a= -b b) x=a and...
- 1 Educator Answer
- The vectors a and b have lengths 2 and 1, respectively. The vectors a+5b and 2a-3b are...
- 1 Educator Answer