Thanks for the replies, however i still cant seem to figure it out, after replacing it with the dot product and expanding I am left with 1/2(5b^2+a^2+4ab) at which point I am not sure where else to go from there
If M is the midpoint of the side BC of triangle ABC. Let vector AB =a and vector AC = b
a ) Find vectors AM and CM in terms of a and b
i got
AM = (3b+a)/2 , CM=(a+b)/2
part b)
Show that |AM|^2 +|CM|^2 = 1/2 (|AB|^2 + |AC|^2)
Need help with part b, I tried to sub in the vectors into the...
Wanted to ask how to do this question.
In the argand diagram below, Point P lies in the first quadrant on the unit circle. P represents the complex number w and z=w is a root of z^5=1. anglePOx=theta
(I have not included the diagram, which is only a unit circle with a vector labelled P with...
After finishing my first term of year 12, my marks aren't looking great.
I'm particularly concerned about my maths extension 2 mark, which I got 58% in my Proofs test, the average was 66%. I'm aiming for a high atar and I'm not sure I can even recover from this, this task was weighted 20% so I...