Register to reply

λa+b+vc =0 constants not all zero c.(axb)=0

by indie452
Tags: λa, caxb0, constants
Share this thread:
indie452
#1
May13-09, 04:11 PM
P: 124
1. The problem statement, all variables and given/known data

past paper qu...

λa + b + vc = 0
for some λ, , v not all zero show c.(axb)=0

consider cases v not equal to 0 and v = 0

3. The attempt at a solution

not sure how to start so if someone could just point me in the right direction or offer another hint it may help me get started in the mean time i'll keep looking at it

thanks


ok i think i made a bit of progress:-

when v not= 0
λa.(axb) + b.(axb) + vc.(axb) = 0.(axb)

so vc.(axb) = 0
=> c.(axb) = 0
Phys.Org News Partner Science news on Phys.org
Bees able to spot which flowers offer best rewards before landing
Classic Lewis Carroll character inspires new ecological model
When cooperation counts: Researchers find sperm benefit from grouping together in mice
Dick
#2
May13-09, 04:25 PM
Sci Advisor
HW Helper
Thanks
P: 25,243
Use properties of the dot and cross product. axb is perpendicular to both a and b, right?
So a.(axb)=b.(axb)=0. And if a and b are parallel, then axb=0.
indie452
#3
May13-09, 04:30 PM
P: 124
Quote Quote by Dick View Post
Use properties of the dot and cross product. axb is perpendicular to both a and b, right?
So a.(axb)=b.(axb)=0. And if a and b are parallel, then axb=0.
ok this along with the progress i made earlier has helped me do the qu

thanks alot


Register to reply

Related Discussions
Rate Constants From Equilibrium Constants Biology, Chemistry & Other Homework 6
List of the most up to date standards for constant values General Physics 3
Multiple lines in H2 and Hg emission spectra Quantum Physics 1
Constants Calculus & Beyond Homework 2
The 26 Constants General Physics 4