How serious a question can we ask on this? (in mathematics)

Question

saifoo.khan · Answer

o.O

nilankshi · Answer

as serious u like

nilankshi · Answer

☺

saifoo.khan · Answer

anonymous · Answer

im doing linear algebra at uni, was wondering if anyone could give a defnintion/explanation of what it means for a matrix to be linearly dependent

anonymous · Answer

A matrix is linearly dependent if one row (or column) can be written as a linear combination of the other rows.

anonymous · Answer

For example, the matrix
[1 2 3]
[1 1 1]
[0 1 2]
is linearly dependent since the first row is the summation of the second and third row.

anonymous · Answer

ahah ... thankyou ... makes sense now ... lol i seem to need examples to make things clear,

anonymous · Answer

also, in square matrices, a matrix is linearly dependent if its determinant is zero.

anonymous · Answer

so in a test situation, showing that the determinate is zero would suffice to show that a matrix is L.D.

anonymous · Answer

yes that should suffice.

anonymous · Answer

thankyou very much for clearing this up ... this is also a good site ... im glad i found it

amistre64 · Answer

we perfer you to actually BE serious about the questions you ask, as opposed to some of the tripe that gets posted :)

anonymous · Answer

i have a healthy respect for mathematics and i think this is a great idea, i will frequently be using this,

amistre64 · Answer

nice klein bottle if im not mistaken

anonymous · Answer

correct :)