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Maths Extension 2 Predictions/Thoughts (3 Viewers)

Thread starter carrotsss
Start date Oct 7, 2023

C

constexpr

Active Member

#261

liamkk112 said:
did everyone else get 2 theta for that integral

yea what the fuck, was the final answer wrong?

liamkk112

Well-Known Member

#262

amborger said:
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

S

scaryshark09

∞∆ who let 'em cook dis long ∆∞

#263

liamkk112 said:
did everyone else get 2 theta for that integral

what intgeral:??

A

amborger

New Member

#264

wait wtf 2 theta wtf which question was that

C

constexpr

Active Member

#265

carrotsss said:
which one?

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

SB257426

Very Important User

#266

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

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

everyone in my class did

liamkk112

Well-Known Member

#267

constexpr said:
yea what the fuck, was the final answer wrong?

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

C

carrotsss

New Member

#268

liamkk112 said:
did everyone else get 2 theta for that integral

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

SB257426

Very Important User

#269

liamkk112 said:
did everyone else get 2 theta for that integral

yep

everyone in my class got 2theta as well

liamkk112

Well-Known Member

#270

SB257426 said:
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

Well-Known Member

#271

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 ?

A

amborger

New Member

#272

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

C

constexpr

Active Member

#273

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??

S

scaryshark09

∞∆ who let 'em cook dis long ∆∞

#274

amborger said:
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??????

C

carrotsss

New Member

#275

amborger said:
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

Well-Known Member

#276

scaryshark09 said:
yeh im confused what question did y'all get 2 theta for??????

using sin^2 theta sub one

S

scaryshark09

∞∆ who let 'em cook dis long ∆∞

#277

SB257426 said:
that integration question btw..... In = 1/2^2n

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

everyone in my class did

what question??

A

amborger

New Member

#278

oh wait yall mean double angle right
ok

liamkk112

Well-Known Member

#279

constexpr said:
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

S

scaryshark09

∞∆ who let 'em cook dis long ∆∞

#280

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

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