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Use ASCII mathematics conventions:
Use as many pairs of brackets to make your expressions unambiguous
Use ^ for raising to a power
You may find further help on ASCII math notation here, but note the comments don't respect spaces in input so don't try anything that requires multiple lines of text to line up.
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Sample Question (pulled off Yahoo Answers):
Linear Algebra Question: Finding the Dimension?
If S is a subspace in R^4 and
S = {(a,b,c,d) in R^4 , a+c = b , a+c+d=0} what is the dimension of S?
I have the answers and it says that S is generated by the vectors (1,0,-1,0) and (1,1,0,-1) and that the dimension of S is 2.
How do we find those 2 vectors that generate S? Please explain!!
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