By assumption the standard basis
vectors i, j and k are mutually perpendicular, and of magnitude one. Hence by
definition of the scalar product
© 2002-09 The University of Sydney. Last updated: 09 November 2009
ABN: 15 211 513 464. CRICOS number: 00026A. Phone: +61 2 9351 2222.
Authorised by: Head, School of Mathematics and Statistics.
Contact the University | Disclaimer | Privacy | Accessibility