# vector problem

a vector of magnitude (51)^1/2 making equal angle with vector a=1/3(i-2j+2k),b=1/5(-4i-3k) and c=j is?

Note by Deepankar Singh
5 years, 3 months ago

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold
- bulleted- list
• bulleted
• list
1. numbered2. list
1. numbered
2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in $$...$$ or $...$ to ensure proper formatting.
2 \times 3 $$2 \times 3$$
2^{34} $$2^{34}$$
a_{i-1} $$a_{i-1}$$
\frac{2}{3} $$\frac{2}{3}$$
\sqrt{2} $$\sqrt{2}$$
\sum_{i=1}^3 $$\sum_{i=1}^3$$
\sin \theta $$\sin \theta$$
\boxed{123} $$\boxed{123}$$

## Comments

Sort by:

Top Newest

Use the fact that $$\vec{v}\cdot\vec{u}=\left\|\vec{v}\right\|\times\left\|\vec{u}\right\| cos\theta$$ where $$\theta$$ is the angle between the two vectors. Doing this should get you a final vector of (-5,1,5).

- 5 years, 3 months ago

Log in to reply

OK SO I HV TO PUT OL THE VECTORS ....THIS VL GIVE ME 3 EQUATIONS TO SOLVE...RYT????

- 5 years, 3 months ago

Log in to reply

×

Problem Loading...

Note Loading...

Set Loading...