December 26th, 2018, 12:41 PM  #11 
Math Team Joined: May 2013 From: The Astral plane Posts: 2,138 Thanks: 872 Math Focus: Wibbly wobbly timeywimey stuff.  
December 26th, 2018, 03:36 PM  #12  
Math Team Joined: Jul 2011 From: Texas Posts: 2,887 Thanks: 1506  Quote:
(3) If u and v are both unit vectors inclined at 60° ... d = 3a + 2b + c = 10u + 5v d = $5\sqrt{7}$  
December 27th, 2018, 06:44 AM  #13 
Senior Member Joined: Sep 2016 From: USA Posts: 600 Thanks: 366 Math Focus: Dynamical systems, analytic function theory, numerics 
So you have so little understanding of what you are doing that you can't even parse the simple questions you have been asked here? I suggest you spend more time reading and stop trying to shortcut through your homework or the next course is going to kill you.

December 27th, 2018, 05:03 PM  #14 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,791 Thanks: 630 Math Focus: Yet to find out.  

Tags 
vector 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
vector as product of matrices, exp function of vector  whitegreen  Linear Algebra  1  June 9th, 2015 06:11 AM 
vector product of a vector and a scalar?  71GA  Algebra  1  June 3rd, 2012 01:20 PM 
Determining a 3D Vector B after a rotation of 3D Vector A  babarorhum  Algebra  0  October 20th, 2011 03:53 PM 
Vector Calculus Divergence of a Vector Field  MasterOfDisaster  Calculus  2  September 26th, 2011 09:17 AM 
Spherical Vector to Cartesian Vector  tsa256  Algebra  3  August 20th, 2010 07:33 AM 