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Maths Ext 2 Predictions/Thoughts (3 Viewers)

Jojofelyx

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whats the e4 cut off prediction
prolly 84 or smthn. Im pretty sure a lot of the questions were cmd c cmd v style from a lot of trials i had a look at. So in short. All the geezers in sydney who hhustleed through about 100 past papers, prolly coppin 90s raw xD
 

notme123

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prolly 84 or smthn. Im pretty sure a lot of the questions were cmd c cmd v style from a lot of trials i had a look at. So in short. All the geezers in sydney who hhustleed through about 100 past papers, prolly coppin 90s raw xD
that seems a bit too high. i reckon lower. my mark is deteriorating as we speak and im clinging to something haha
 

notme123

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Last years cut off was 78 just asking people around who bought their paper and this years was defs harder so probably 70 as E4 cut off? Idk
thank you jesus for the information you have imparted
 

Siwel

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what about the Re(e^ipi/10) = the square root things did yous solve cos5theta=0 then take out an x and solve the quartic/>
 

notme123

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what about the Re(e^ipi/10) = the square root things did yous solve cos5theta=0 then take out an x and solve the quartic/>
that was easy. you get a quadratic/quartic in the end. its just basically show cospi/10 = that thing, just with an extra step
 

zakoht

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fair enough mightve done it wrong then, one of my quad formulas was a negative sin so i assumed thatys why it verify if the solutions are correct w/reasoning
ye idk ill just wait till the official solutions are up haha youre too smart
This is pre much the rough idea of what I did. Didn't actually do it rn because can't be bothered but maybe that gives you a better idea.
 

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notme123

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This is pre much the rough idea of what I did. Didn't actually do it rn because can't be bothered but maybe that gives you a better idea.
how does that work???? how can you dot product lengths
 
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