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# Orthogonal Basis

LINALG-UEGGIN

Which of the following is an orthogonal basis for $R^3$?

A

$\{(1,0,0),(0,1,1),(0,1,-1)\}$

B

$\{ (2,3,0),(0,1,1),(1,0,2)\}$

C

$\{(1,1,1),(2,2,-4)\}$

D

$\{(1,2,0),(0,0,0), (-2,1,0) \}$

E

$\{(1,1,0),(0,1,0),(0,0,1) \}$