# Linearly independent vectors

1. Nov 3, 2014

### woundedtiger4

http://tinypic.com/r/euht06/8

Hi everyone!
It was the question given to us in today's test & I was wondering if anyone can tell me what is the correct answer. The teacher will post the answers by the end of this week but I am feeling anxious to know the answer.

P.S. Sorry, if I have posted the question in wrong section of this website.

2. Nov 3, 2014

### Fredrik

Staff Emeritus
Questions about textbook-style problems should be posted in a homework forum. I will move this thread there. Our rules about homework say that we can't help unless you show us your solution, or at least your work up to the point where you're stuck.

3. Nov 3, 2014

### woundedtiger4

It was a question from my today's test which was multiple choice question styled. My lecturer said he will provide the solution later this week therefore I was worried about my answer and asked for help as I selected the option "d".
I wrote the at the of the post if my thread is in wrong section of website.

Edited note: I can provide the whole question paper which shows today's date and institution's name, just to make sure it is not from weekly assignment.

4. Nov 3, 2014

### phinds

WHY did you answer "d" ? You are apparently not understanding that on this forum we don't give answers we help people figure out how to get the answer themselves. Show your work, explain your reasoning, and then we can either tell you you got it right or give hints for what you might have done wrong.

5. Nov 3, 2014

### Fredrik

Staff Emeritus
Wouldn't it be just as easy to show us your attempt to solve the problem? You don't even have to use LaTeX to type this. Here's a λ that you can copy and paste.

6. Nov 3, 2014

### haruspex

On what logic?
Do you know how to calculate a determinant, and how that would be relevant here?

7. Nov 3, 2014

### Fredrik

Staff Emeritus
The determinant approach requires you to understand a somewhat complicated theorem. I prefer to just use the definition of "linearly independent".

I have to get up early tomorrow, so I'm going to bed. But I'm sure someone else will help you if you post your attempt to solve the problem.

8. Nov 3, 2014

### Staff: Mentor

I am closing this thread. As already mentioned, homework or coursework questions need to be posted in the Homework & Coursework sections (where the thread was moved to). Also, you need to show the work you have done. In this case, that would be the reasoning behind your choice of 'd' as the answer.