A2 3d vectors

[toxic bramble]

yeah idk im lost on this

started with AU=OS=b+c

Then AS=b+c-a

Then OM=OA+1/2(AU)=a+1/2(b+c)

Stuck there tho

[vapid bay]

do u have the answer to the question ?

[toxic bramble]

yes

[vapid bay]

check if this is right for the eqations

[toxic bramble]

sry got stuck doing something

[vapid bay]

what do u not get ?

Om doesnt have a position vector as it start from the origin

[toxic bramble]

Erm well

Ive been told this is further maths

I didnt understand where they were randomly saying "let x be this" etc

but yh i found it on one of my regular maths ocr practice papers

[vapid bay]

isnt part of the vector topic in alevel maths ?

[vapid bay]

its just saying basically for any point on the line

[toxic bramble]

Stuff like making equations with lambda and mu apparently not

[vapid bay]

ohh yhh makes sense

[sonic atlas]

do u still need help?