The problem that I am unsure about is: k x (i - 2j). What are the rules for adding and subtracting vectors like this?
Last edited by Shadow236; Sep 19th 2013 at 05:07 PM.
Follow Math Help Forum on Facebook and Google+
Originally Posted by Shadow236 The problem that I am unsure about is: K x (i - 2j). What are the rules for adding and subtracting vectors like this? Be careful about notation, in particular capitalization. I think you mean: The rules are: and
Okay, I fixed it. In that case I went through the problem like this... = k x i + (-2)(k x j) = j - 2i
View Tag Cloud