As level maths help vectors question

Y12EC

Can somebody explain to me how you get λ = 1 - μ and λ = μ from the equation above it. Thanks.

(edited 10 months ago)

Reply 1

old_engineer

Original post by Y12EC

Can somebody explain to me how you get λ = 1 - μ and λ = μ from the equation above it. Thanks.

Going back one line in the given working, for the equation to be valid:

* the coefficients of a must be the same on both sides of the equation, and
* the coefficients of c must be the same on both sides of the equation.

(edited 10 months ago)

Reply 2

davros

Original post by old_engineer

Going back one line in the given working, for the equation to be valid:

* the coefficients of lambda must be the same on both sides of the equation, and
* the coefficients of mu must be the same on both sides of the equation.

did you mean to say "coefficients of a" and "coefficients of c" respectively? It would be more usual to refer to the scalar quantities as the "coefficients" in a vector equation :smile:

Reply 3

old_engineer

Original post by davros

did you mean to say "coefficients of a" and "coefficients of c" respectively? It would be more usual to refer to the scalar quantities as the "coefficients" in a vector equation :smile:

I did mean to say that. Thank you very much for pointing it out. I have corrected my post above accordingly.