Linear algebra
The linear algebra problem is in the word document since it was easiet to type it there.
If you have any questions about it just text me.
2.. In the linear space $R^{4} $ regarding its standard basis E = {$e_1, e_2, e_3, e_4$} are given the vectors:
$a_1 = 4\times e_2\times 2 + 7\times e_3\times 3 + 3\times e_4\times 4$
$a_2 = (4 ? 3, ?3, 7 ? 4, 4 ? 3)$
$a_3 = (4 ? 3, 4 ? 3, 2\times 7 ? 4, 4) $
Find if the system of vectors A={$a_1, a_2, a_3$} is linearly independent and find rankA

What do you mean by "b) To study the matrices for linear dependence (independence) "? What do you mean by * in question 2? I just see a bunch on multiplications and additions, there are not matrices or vectors. Your writing is very unclear. You can take a picture of your questions and upload if it is from a textbook.

Posted more clear info. It's not in english and it's pretty hard for me to translate it.

Still not clear. What does 43 mean?! isn't 43=1? I guess you mean something else by the minus sign. It's ok if you text is in a different language one can guess what the question is from the equations.

https://imgur.com/onQXiJe there is link to the image

The equations you had typed is o much different than the ones in the image. Since you are offering a low bounty, you should try to ask your question very clearly, otherwise $10 is enough enough incentive form someone to try to put all of these together and answer a post with multiple parts.

is it possible to answer just the first question without the second? I don't have much money and i cant give more for that

It is still not clear to me what part 1 b) is asking. Your translation doesn't sound right.

Are you asking wether those two matrices are linearly independent?

yes

which one are you answering?
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