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General Thoughts: Mathematics Extension 1 (1 Viewer)

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What was the answer to 10?

Also how did everyone prove that the line was a tangent to the circle?
 

SamuelC23

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Overall I thought it was quite an easy exam. Questions I struggled with was finding 'D' in the projectile motion question (although I think I will get 2/3), the circle locus of Q(which I also think I will get 2/3 as I nearlly solved it using QS=OS), the 2nd part of the circle geometry question and of course the last question (what the hell was that?). I think I'll get about 90%.
 

IR

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Freaking last question. I damn the last question. So easy to do yet so difficult to understand :(
 

Trebla

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It looked like one of the easier papers. Q12e) was quite a good one because you have to understand the mechanism of Newton's method rather than blindly apply the formula.
 
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esaitchkay

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Quite a nice test. For 13ciii), I let (0, 2a) be S' and found gradient QS', which was -1/t
QS' x OQ = -1 therefore OS' diameter (subtending 90 degrees at circumference) on circle x^2 + (y-a)^2 = a^2
Does that sound legit?
 

Prawnchip

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That was so fked

Can anyone estimate the raw mark for E3? I'm praying for a middle - high E3
 

SquareZ

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I think I got 69/70 after cross checking with some mates and mreditor's answers. GOD DAMN I put B for the last multiple choice! So close!
 
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all the effort gone the damn toilet. BOSTES, can't wait to never even hear that again. Seriously, i thought was the 4 unit test was way better, even not counting scaling, just percentage wise. bye bye e4, hope e3 will accept me, probs not.
 

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