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Did you see SAT Math level II?i used to be..uni maths is nothing but rubbish now!!!!
Oh, yeah!I HEAR U GOT PROPOSED XD
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Did you see SAT Math level II?i used to be..uni maths is nothing but rubbish now!!!!
Oh, yeah!I HEAR U GOT PROPOSED XD
no i did not.. whhy?Did you see SAT Math level II?
Oh, yeah!
Just look at it once.no i did not.. whhy?
Theory is must.aths isnt difficult,.... its just a lot of theory now... but still this semester is better than the last
yes i did. scored 85+Just look at it once.
Did you took Add Math?
Theory is must.
Oops, I meant Mathematics Furtheryes i did. scored 85+
nopes i did notOops, I meant Mathematics Further
Seriously! This is it!nopes i did not
this is only a subsection of what we had to study from theory
http://en.wikipedia.org/wiki/Group_(mathematics)
trust me they are even worse than wikipediaSeriously! This is it!
I must say, this theory part needs notes, OWN NOTES. Hope so you know the reason well.
Make it decorative, colorful, in your style rutz!trust me they are even worse than wikipedia
Nah, we are disusing about a specific topic on MATH - NOTES! Its allowed. If not sure, make a convokher i think we are going off topic here
NOOOOOOOOOOOOOOOOOOOO WAYYYYYYYYYYYYYYYYYYYYYYYYYYYMake it decorative, colorful, in your style rutz!
I dont have to say this all to you. You are a nice note maker na?
*Bow*NOOOOOOOOOOOOOOOOOOOO WAYYYYYYYYYYYYYYYYYYYYYYYYYYY
ive got a dirty handwriting and i hate decorations... i dont even make margins not even on the paper and almost never put opn the date...
7i)could someone pleeease explain the vector question 7 (i) and (ii) from May June 2014 paper 13???
got the marking scheme but i dont understand :0
it wont work of course -___- coz u r searching for the angle A. which is between AB and AC....so u need to take A as starting point. its vectors so the direction counts hell lot. so u need to strt from A. so ull be needed vector directions AC and AB.thts how ive learnt it. ask others if theres other explanations.7i)
To find angle BAC, you will need sides, take it either AB, AC or BA, CA
Lets chose AB and AC. So now, we need vectors AB and AC, hence
We need to do b - a for AB and c - a for AC.
AB = (4, -2, 4) And AC = (0, 3, 4)
Now the second step we need to do is dot product of 2 vectors AB and AC.
Thats AB.AC = (4*0, -2*3, 4*4) = 0 - 6 + 16 = 10
Opening vectors,
Root(ABsquared) * Root(ACsquared) * cosBAC = 10
Root(36) * Root(25) * cosBAC = 10
BAC = cos inverse 1/3
But RoOkaYya G if we do it with BA and CA its not possible...Why? Rutzaba
7ii)
RoOkaYya G help
7i)
Opening vectors,
Root(ABsquared) * Root(ACsquared) * cosBAC = 10
Root(36) * Root(25) * cosBAC = 10
BAC = cos inverse 1/3
But RoOkaYya G if we do it with BA and CA its not possible...Why? Rutzaba
7ii)
RoOkaYya G help
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