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Mathematics 15 Online
OpenStudy (adi3):

Pls help

OpenStudy (adi3):

http://prnt.sc/aifoqn

OpenStudy (adi3):

@IrishBoy123

OpenStudy (adi3):

@wolf1728

OpenStudy (qwertty123):

You need to find 4 equations... Okay hold on let me see here...

OpenStudy (adi3):

just give 2 sin and cos and tell me how did u do it pls

OpenStudy (anonymous):

srry camputer froze

OpenStudy (qwertty123):

@phi can you help?

OpenStudy (anonymous):

@Lord2clash we need help

OpenStudy (adi3):

she is offline

OpenStudy (lord2clash):

i have no idea how to do this type of equation sorry

OpenStudy (anonymous):

write queston in chat

OpenStudy (adi3):

y not here

OpenStudy (irishboy123):

do you wanna do a sine one?

OpenStudy (adi3):

any but i dont know how to do it

OpenStudy (adi3):

thats the problem

OpenStudy (anonymous):

no in queston chat

OpenStudy (adi3):

there is no equation

OpenStudy (irishboy123):

well a really general sine curve will look something like this \[y = A\sin \dfrac{2 \pi (x - \phi)}{\lambda} + B\] there's quite a bit of fiddling to do but do you recognise any of that?

OpenStudy (adi3):

i am in 10th we did not even do that

OpenStudy (anonymous):

im 16

OpenStudy (adi3):

asinb(x-c) +d

OpenStudy (irishboy123):

yeah that works! we need to find the letters

OpenStudy (irishboy123):

d is easy!

OpenStudy (irishboy123):

do you see it?

OpenStudy (irishboy123):

-2

OpenStudy (adi3):

yes

OpenStudy (adi3):

the mid line

OpenStudy (irishboy123):

great! and now a = amplitude

OpenStudy (adi3):

ok

OpenStudy (irishboy123):

a sine curve oscillates between 1 and -1. this one needs to be scaled up

OpenStudy (adi3):

|dw:1458646199076:dw|

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