September 4th, 2010, 11:53 PM  #1 
Newbie Joined: Aug 2010 Posts: 12 Thanks: 0  vector algebra
hello every one,my question is How many vectors there which are making equal angles with +ve x,y and z axis ? thanks in anticipation 
September 5th, 2010, 01:12 AM  #2 
Member Joined: Jun 2010 Posts: 36 Thanks: 0  Re: vector algebra
Only one vector.

September 5th, 2010, 06:40 AM  #3 
Math Team Joined: Dec 2006 From: Lexington, MA Posts: 3,267 Thanks: 407  Re: vector algebra I believe there are two:[color=beige] .[/color] 
September 5th, 2010, 07:42 AM  #4 
Senior Member Joined: May 2008 From: York, UK Posts: 1,300 Thanks: 0  Re: vector algebra
Well, clearly there are infinitely many vectors in that have this property, but there is one up to multiplication by an arbitrary nonzero scalar, and two up to multiplication by an arbitrary positive scalar.


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