A vector equation for a given straight line is r = (I + 3 j) + lambda(-i - j) a) sho [Archive]

fraser james

May 25, 2012, 09:49 PM

I can find a) quite easily, but am getting confused with b) and consequently c). Thanks for any help.

physic

May 26, 2012, 03:18 PM

r = (i + 3 j) + \lambda(-i - j)
question is not clear!