Vector Proofs (2 Viewers)

[Scrambled]

Hate to disrupt the actual HSC discussions but could I get some help for this vectors question? Imma assume it has something to do with dot product is equal to zero?

Thank you in advance

 

[SMARTYPANTS_SINGH]

can't actually try it cause got paper 2 but just seeing the perpendicular my first thought is dot product = zero as u said, and just find OR and AB in terms of the same vectors if u can and use the fact that PB dot OP=0 and OQ dot QA = 0 and you should get it

 

[Strafe]

you know what u can do, u can chuck us that whole vector sheet bcos i want the practice

 

[alewe]

 

[Scrambled]

View attachment 44773

YOU'RE AMAZING THANK YOUUU

 

[Scrambled]

you know what u can do, u can chuck us that whole vector sheet bcos i want the practice

Yeah lol sure here are some I'm a little stuck on if you wanted to give it a try whenever:

 

[Scrambled]

Yeah lol sure here are some I'm a little stuck on if you wanted to give it a try whenever:
View attachment 44777
View attachment 44778

Okay I got the first one anyone know how to do part (c) of the second

 

[penguinzombie]

Okay I got the first one anyone know how to do part (c) of the second

, you prob don't need it anymore but I did the q, sorry if the working is messy, for questions like this u need to add 2 unknown variables generally, at least that's what I did. Still confused on the one u sent before with the isosceles triangle, if you had answers you can send it would be a life saver