Sunday

February 1, 2015

February 1, 2015

Posted by **batmo** on Thursday, August 30, 2012 at 4:20pm.

2.Find vectors v*w if vector v = -3 vector i 4 vector j - 8 vector k and vector w = 2 vector i + 6 vector j + 4 vector k.

- calculus - eh? -
**Steve**, Thursday, August 30, 2012 at 4:30pmv*w has no meaning in common notation.

Do you mean vw or vŚw ?

- Calculus -
**batmo**, Thursday, August 30, 2012 at 5:13pmv times w

- Calculus -
**Steve**, Thursday, August 30, 2012 at 5:24pmi assume you mean cross-product

I'll do #1:

vxw =

| i j k|

|5 -4 4 |

|-6 3 -2|

= 32i-28j+26k

You can make things a lot more readable by just saying you're dealing with vectors. Then you can forget about all those words and just write the values, as in my answer.

- Calculus -
**batmo**, Thursday, August 30, 2012 at 6:23pmno i dont mean cross product.

3 4 2

14 9 4

5+ 3 4

4 14 9

these are the possible answers. all with IJK following of course.

- Calculus -
**Steve**, Friday, August 31, 2012 at 5:10amIn that case, say dot product.

5i-4j+4k -5i+3j-2k = -25-12-8 = -45

you say you don't mean cross product, but you give vectors for answers.

dot product of two vectors is just a number.

I'm afraid I don't know what operation you are using.

**Answer this Question**

**Related Questions**

Math - vectors - In the product F(vector)=q(V(vector)xB(vector), take q = 4, V(...

Physics - Let vector A = 4i^ + 4j^, vector B = -2i^ - 5j^, and vector F = vector...

Physics - Let vector A = 4i^ + 4j^, vector B = -2i^ - 5j^, and vector F = vector...

cartesian vectors 2 - let vector U = (vector u1, vector u2) vector V = (vector ...

Calculus - Dot Product - consider a rhombus ABCD a) find the resultant of vector...

Calculus and vectors - Vector AB is a vector whose tail is at (-4,2) and whose ...

Calculus and vectors - Vector AB is a vector whose tail is at (-4,2) and whose ...

College Physics - Vector Algebra let A vector=6ihat+3jhat, B vector= -3ihat-...

Mathematics - Dot Product - Consider rhombus ABCD a) Find the resultants of ...

maths - Let vector a and b be two non-null vectors such that |vector a +b| =|...