Asked by Sara
What does it mean to span in R2? I have this question:
Which of the following sets if vectors span R2?
a) {(1,1),(-2,-2)}
b) {(1,1),(1,2)}
c) {(1,2),(1/2,2)}
d) {(-1,1),(1,-1)}
Which of the following sets if vectors span R2?
a) {(1,1),(-2,-2)}
b) {(1,1),(1,2)}
c) {(1,2),(1/2,2)}
d) {(-1,1),(1,-1)}
Answers
Answered by
Steve
They span R2 if they are independent. That is, the 2nd is not a multiple of the 1st.
So, what do you think?
So, what do you think?
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