Maths Ext 2 Predictions/Thoughts (7 Viewers)

[liv888]

Could have gotten 80 but got the cheap mistakes in the front of the paper due to sleeping 3 hrs today. Realistically I'll probs get 65-70, was hoping for that E4 but not today I guess.

Same I wasn't expecting much but after checking my answers i really made a lot of silly mistakes

 

[notme123]

what did people get for that integral with the retarded limits like root 13 and root 10. i got a fraction. welp theres another 2 marks cuz desmos said its wrong.

 

[🍑 this is a peach]

e2 here i come

 

[golden-touch]

what did people get for that integral with the retarded limits like root 13 and root 10

lmaoo i did a 3sectheta sub for that but it was so screwed then i later realised you just needed to do a u=x^2-9 sub (the thing in the squareroot - worked out very nice )

 

[golden-touch]

e2 here i come

ill cop an E2 at this point ngl

 

[notme123]

lmaoo i did a 3sectheta sub for that but it was so screwed then i later realised you just needed to do a u=x^2-9 sub (the thing in the squareroot - worked out very nice )

the sec theta sub still worked i think didnt it?

 

[liv888]

what did people get for that integral with the retarded limits like root 13 and root 10. i got a fraction. welp theres another 2 marks cuz desmos said its wrong.

don't remember but I made the substitution of u^2=x^2-9 or something like that, got limits like 1 and 0

 

[golden-touch]

the sec theta sub still worked i think didnt it?

i dont think so the limits were very screwed up with that sub

 

[O01x]

I did u^2=sqrt (x^2-9) i think that worked

 

[vishnay]

I did u^2=sqrt (x^2-9) i think that worked

what was the answer to that again?

 

[O01x]

what was the answer to that again?

no idea bro, i cant remember

 

[notme123]

what was the answer to that again?

desmos says 27.2 but i got something completely different

 

[vishnay]

desmos says 27.2 but i got something completely different

i cant be bothered to check but ik i got it right

all the integration questions were so free lol and thats my favourite topic

 

[🍑 this is a peach]

don't remember but I made the substitution of u^2=x^2-9 or something like that, got limits like 1 and 0

just realised i forgot to keep the 1/2 when i canceled the x

 

[BAYPALS]

what did people get for that integral with the retarded limits like root 13 and root 10. i got a fraction. welp theres another 2 marks cuz desmos said its wrong.

i got a nice fraction. 128/5 or someshit like that i forgot

 

[notme123]

wow it seems i butchered that. how many marks was it like 3?

 

[Paradoxica]

i cant be bothered to check but ik i got it right

all the integration questions were so free lol and thats my favourite topic

Only in the HSC. Try the BoS Trials Integrals

 

[Chungus]

what was the answer to that again?

I got like 136/5 or something

 

[oredbayz]

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.

where did i go wrong

 

[O01x]

did u guys sub in 2k-1 to prove the recurrence relation thing