maths 9709/32

[Zaryab]

Guys, first of all we were supposed to find two position vectors of p point. Secondly, we were asked to find the distance between two points. Lambda was 3 and 1. The final distance between two points was 12.

 

[JackTheRipper]

yeah. I couldn't get the second lambda. We had an equation for the perpendicular distance between a point and a plane so for a general point, I equated the distances point->plane1 and point->plane2. It was linear so I got only one lambda. How did you get the second one ?

 

[Saloon]

hahaha don't think i should have started this thread its making me feel bad lol... whats the derivative of ln²(x)?

 

[JackTheRipper]

Chain rule. 2ln(x) * 1/x so 2ln(x)/x. I didn't know and had to test it out, it was right

 

[Saloon]

Chain rule. 2ln(x) * 1/x so 2ln(x)/x. I didn't know and had to test it out, it was right

yeah thats what i got too yay...