October 11th, 2018, 12:50 AM  #1 
Newbie Joined: Oct 2018 From: Nigeria Posts: 1 Thanks: 0  Vector algebra
the segment bounded by points A (1, 8, 3) and in (9, 7, 2) is divided by points M1, M2, M3, M4 into five equal parts. find the coordinates of points M1 and M3.
Last edited by skipjack; October 11th, 2018 at 06:05 AM. Reason: to change "." to ", " 
October 11th, 2018, 03:11 AM  #2 
Senior Member Joined: Feb 2010 Posts: 692 Thanks: 132 
As written, it cannot be done.

October 11th, 2018, 03:30 AM  #3 
Senior Member Joined: Feb 2010 Posts: 692 Thanks: 132 
However, if I make one change and make one assumption, then I get $\displaystyle M_1=(1,5,2.8)$ and $\displaystyle M_3=(5,1,2.4).$. On the other hand, you might actually mean what you wrote. P.S. to moderators: why isn't the latex parsing properly? Last edited by skipjack; October 11th, 2018 at 06:06 AM. Reason: to disable smilies in this post and correct typo 
October 11th, 2018, 03:41 PM  #4 
Global Moderator Joined: May 2007 Posts: 6,610 Thanks: 617  I got the same results you did with the question as written. What was the change that you needed to make?
Last edited by skipjack; October 11th, 2018 at 08:05 PM. 
October 12th, 2018, 12:22 PM  #5 
Senior Member Joined: Feb 2010 Posts: 692 Thanks: 132 
Skipjack edited the problem. It originally had 1.5 which he changed to 1,5. So I assumed it was a comma. The other assumption I made was that the points were given in order starting with $\displaystyle M_1$ closest to $\displaystyle A$ and going toward the unnamed point.


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