# college

posted by .

Which of the following choices is a solution for:

(-3-i)x1 + (1-2i)x2 = 0
(-7-9i)x1 + (7-4i)x2 = 0

for any value of the variable t

[x1] = ?
[x2]

A: [5]
[1+7i] * t

B: [5]
[1-7i] * t

C: [5]
[-1-7i] * t

D: [5]
[-1+7i] * t

This is linear algebra by the way;

• Linear Algebra, not "college" -

Assistance needed.

Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.

• college -

Should I just make a new topic using the appropriate subject heading or just wait for a response on this topic?

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