VCE Stuff > VCE Specialist Mathematics
addition and subtraction of vectors
enpassant:
the locations of points A and B are a = 2i - 3j and b =-i -j respectively, find and interpret a - b and a + b if exist.
Mao:
i'd presume so, they are both on the i-j plane:
evaporade:
I doubt your presumption is correct.
Mao:
--- Quote from: evaporade on April 03, 2008, 08:39:42 pm ---I doubt your presumption is correct.
--- End quote ---
how so?
i dont see how its false....
Captain:
--- Quote from: evaporade on April 03, 2008, 08:39:42 pm ---I doubt your presumption is correct.
--- End quote ---
Mao is definatly right....
Only thing that is technecally not right is you can't subtract vectors. You have to add the negative vector.
a + -b
2i-3j + -(-i-j) = 2i-3j+i+j = 3i-2j
Same thing...Just what my teacher says :P
Navigation
[0] Message Index
[#] Next page
Go to full version