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just plug the numbers in.

|dw:1443664554238:dw|
simplifying that, I got 11, so d =11
will the answer be 2x1 + 3x2 - 5x3 = 11?

that's what i did, just wanted to make sure if I'm right

i usually have a mistake in vector and scalar equations.. I usually switch them

can we fin vector equation from this?

|dw:1443664955587:dw|

|dw:1443665007633:dw|

wait is there even a vector equation for a plane? O.o

haha nice to throw the ball to me

it's not hard, right? all of us know how to do, right?

there is a normal vector equation for the plane...

you can simply read that off

what this represents is

|dw:1443665293308:dw|

hey, guy, give him the easiest way, please.

isn't that just \[(r-r _{o})n=0\]
jeez, its been so long

got it, nvm

where n is the normal?

yolo

what did ya do?

i am already doing another prob

oh, sorry mate

probs need a refresher since its been like 4yrs ago since I've done this lel

That is the easiest way to find the vector equation from a scalar one.

just replace x2 = lambda 1 and x3 = lambda2

\[|u.v|\le|u||v|\]

i think thats the Cauchy schwartz inequality theorem

pretty straight forward if u apply this, i rekn

ok got it..i use the other one:
|dw:1443666019926:dw|

thanks.

the triangle inequality?

sus this
http://www.math.lsa.umich.edu/~speyer/417/CauchySchwartz.pdf

u don't need to verify anything if u just proof it using variables

it says on the question "Verify the Triangle Inequality"

i will do that for sure :) I'm studying it right now. Thanks for all your help. Really appreciate it

no problem. good luck :)