Maths Extension 2 Predictions/Thoughts (1 Viewer)

[constexpr]

did everyone else get 2 theta for that integral

yea what the fuck, was the final answer wrong?

 

[liamkk112]

what did everyone get for the last question???
i had like a triangle shaped thing in the 3rd quadrant

lol i literally just shaded 2nd quadrant have no idea

 

[scaryshark09]

did everyone else get 2 theta for that integral

what intgeral:??

 

[amborger]

wait wtf 2 theta wtf which question was that

 

[constexpr]

which one?

it was the sin^(2n+1) thing

 

[SB257426]

that integration question btw..... In = 1/2^2n

was the theta a typo.... i got 2theta

everyone in my class did

 

[liamkk112]

yea what the fuck, was the final answer wrong?

i swear it was in james ruse paper and there was some trick but idk

 

[carrotsss]

did everyone else get 2 theta for that integral

omfg I only just realised that wasn’t 2 theta wtf

 

[SB257426]

did everyone else get 2 theta for that integral

yep

everyone in my class got 2theta as well

 

[liamkk112]

that integration question btw..... In = 1/2^2n

was the theta a typo.... i got 2theta

everyone in my class did

same for everyone in my class but then the next part relies on it being right so i just did it with what they gave us

 

[liamkk112]

yea i think the question is just silly if literally everyone is getting 2 theta oh well they just won’t count it towards the marks ig ?

 

[amborger]

what
wait did i miss something
were you meant to evaluate j_n

 

[constexpr]

did you guys have like 2\int sin^{2n+1}\theta \cdot cos^{2n+1}\theta (put this in desmos) which is just double angle??

 

[scaryshark09]

what
wait did i miss something
were you meant to evaluate j_n

yeh im confused what question did y'all get 2 theta for??????

 

[carrotsss]

what
wait did i miss something
were you meant to evaluate j_n

huh? you equated two J2n-1s and then it all worked out if u mean the last part of the recurrence

 

[liamkk112]

yeh im confused what question did y'all get 2 theta for??????

using sin^2 theta sub one

 

[scaryshark09]

that integration question btw..... In = 1/2^2n

was the theta a typo.... i got 2theta

everyone in my class did

what question??

 

[amborger]

oh wait yall mean double angle right
ok

 

[liamkk112]

did you guys have like 2\int sin^{2n+1}\theta \cdot cos^{2n+1}\theta (put this in desmos) which is just double angle??

View attachment 40615

yep

 

[scaryshark09]

i didnt get that 4 marker, it was so hard
why was the question wrong???