Recent content by Annabelle1234

^^ I was trying to substitute numbers because working in variables was confusing. I do know what cross product, dot product etc. means, I am just not sure how to apply them in solving any of these problems. I think I know how to do 'c' and 'e' but I am not sure how to go about doing 'b' and...

^^ I was trying to substitute numbers because working in variables was confusing. I do know what cross product, dot product etc. means, I am just not sure how to apply them in solving any of these problems. I think I know how to do 'c' and 'e' but I am not sure how to go about doing 'b' and 'd'...

So I shouldn't try to substitute numbers? I had been trying to do that all along. Okay... I'll try drawing it down instead. Thanks so much... I hope I'd be able to solve this problem now.

Homework Statement The normal vector of each of the following planes is determined from the coefficients of the x-, y-, z- terms. pi1: a1x+b1y + c1z + d1=0 pi2: a2x+b2y+c2z+d2=0 pi3: a3x+b3y+c3z+d3=0 Define the extended vector for each plan as follows: e1= [a1, b1, c1, d1] e2= [a2, b2, c2...