Vectors basis

[sibiryk]

I am not sure if a vector e=(0,1) is a basis in R^2.

Can it give an expansion to vector u:

u=a(0,1)

u1=0
u2=a ?

 

[sibiryk]

I got it. It a was a stupid question.

 

[HallsofIvy]

R² is "2 dimensional" and so requires 2 vectors for a basis.