# Vector

Watch
Announcements
#1
I’ll post any sketch of the question . How do you show that MN and ST bisect one another ?
0
#2
0
1 year ago
#3
(Original post by MM2002)
Could you post a picture of the original question, there may be extra info about ST?
0
#4
(Original post by mqb2766)
Could you post a picture of the original question, there may be extra info about ST?
0
1 year ago
#5
Have you done a & b? If so, what did you get?
0
1 year ago
#6
(Original post by MM2002)
...
This question has come up a lot on this forum and IIRC the line should be from M to N rather than from M to C.
0
1 year ago
#7
(Original post by MM2002)
If you can do part (a), then you know the vector MN in terms of a and b. To get from M to D, you have to do part of this journey. You don't know how much, so call it sMD, where s is some number between 0 and 1. You can then add this to the vector from O to M to get an expression for the vector OD in terms of a, b and s.

Now do the same thing for the journey from O to D but taking the route OBSD using your answer to (b). This time, use a different sybol, t, to indicate how much of the journey from S to T you are doing.

You now have two ways to get from O to D. Since they both start and end in the same places, they must be equal. So put them equal and see if you can find the values of s and t. You'll also need to write up a convincing conclusion.
0
#8
(Original post by RDKGames)
This question has come up a lot on this forum and IIRC the line should be from M to N rather than from M to C.
Oh ok thanks
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### If you haven't confirmed your firm and insurance choices yet, why is that?

I don't want to decide until I've received all my offers (52)
40%
I am waiting until the deadline in case anything in my life changes (23)
17.69%
I am waiting until the deadline in case something in the world changes (ie. pandemic-related) (6)
4.62%
I am waiting until I can see the unis in person (11)
8.46%
I still have more questions before I made my decision (13)
10%
No reason, just haven't entered it yet (12)
9.23%
Something else (let us know in the thread!) (13)
10%