a level trig

[gilded zealot]

im not sure how to get to the step where the arrow is, have they completed the square? i cant get my head around how if they have

[south kite]

yes

[fiery spire]

icl

[south kite]

mb for caps

[fiery spire]

i think its obv

that 3 sinx -1

[south kite]

nah 😭

[fiery spire]

squared

would give u smth close

then u go from that

[south kite]

what did brampton do to bro 😭

[fiery spire]

i totally forgot about completing the square

idek how to do it

[fiery spire]

mf im done with a levels

[south kite]

ur y12 gang

[fiery spire]

i already quit

idec anymore

[south kite]

gang u cant giev up now

[fiery spire]

suffering and boredom is not for me

[south kite]

bro

in a garden of plants

the ones that become the strongest

[fiery spire]

i need an alter ego for that mindset

[south kite]

are the ones who fight for the best

[gilded zealot]

...........

[south kite]

only with hardship comes success

[fiery spire]

can someone show me how u complete the square here

[south kite]

answer is yes

[fiery spire]

i have no clue

promise

[gilded zealot]

but how im trying to do the steps right and its not working

[south kite]

@gilded zealot imagine the sin x as u
9u^2 - 6u - 1

[9u^2 - 6u] - 1

now take out the 9

[9(u^2 - 6/9 u)] - 1

now we have the 6/9 and then start completing the square

[fiery spire]

can't u js do quadratic formula

[south kite]

ur not solving

[fiery spire]

i still don't get how u do completing the square here

[fiery spire]

what u doing then

[gilded zealot]

the q was a prove question

[south kite]

ok

so after this

[fiery spire]

prove what

send pic of the acc q

man ima kms im acc so cooked

[south kite]

[9(u - 1/3)^2 - 1/9] - 1

@gilded zealot

[fiery spire]

shoulda stuck with my gut and done btecs

[south kite]

start simplifying

minus 1/9 x 9 = -1

[gilded zealot]

i got to 9(sinx-1/3)-1

then idk after

[fiery spire]

@gilded zealot

yo send a ss of the actual q

[fiery spire]

i think im js bugging cus of ur working out

[fiery spire]

aight lets do this

[gilded zealot]

thats the mark scheme i was given

[south kite]

lemme write this one paper

[gilded zealot]

wait i didnt even square the brackets bro

2 week holiday cooked me

[south kite]

@gilded zealot

[fiery spire]

yh GG

emxn i can say rn

im cooked

if u say ur cooked

ima kms

bros the most locked in yr 11 known to man

im changing my name

[south kite]

I’m scared. That’s why.

[fiery spire]

@south kite did my name change

[south kite]

Yes

Trust me bro

[fiery spire]

nice

[south kite]

Just work hard

[fiery spire]

i promise ur saying this to the most unserious, lazy guy known to man

like its not good, but honest

[south kite]

Bro I’m saying this while booting up a game

Trust me u can do this

[fiery spire]

exactly

u have the luxury to do so

im out here 12 hrs a day

doing gaming and watching and reading manga

after waking up at like 11 am earliest

[strange zephyr]

go sleep earlier

get up earlier

forget all that anime shit