help, needed :P

Question

help, needed :P

anonymous · Answer

ready

jennyrlz · Answer

i need to graph these parametric equations ; ;
x = 3 sin3t
y = 3 cos3t

jennyrlz · Answer

x = 3sin 3t y = 3cos 3t Which means x² = 9sin² 3t y² = 9cos² 3t

jennyrlz · Answer

i did this

anonymous · Answer

go to mathway.com it will help you

jennyrlz · Answer

then i added them up x² + y² = 9sin² 3t + 9cos² 3t = 9(sin² 3t + cos² 3t)

jennyrlz · Answer

with trig identities i resulted with x² + y² = 9

anonymous · Answer

https://mathway.com/

jennyrlz · Answer

is this right?

jennyrlz · Answer

what i mathway o3o?

anonymous · Answer

mathway will graph it for you we gant graph on openstudy

jennyrlz · Answer

how do i use it should i say ^.^

jennyrlz · Answer

well before i graph i need to solve the equation
or make it simpler at least :P

jennyrlz · Answer

https://www.wolframalpha.com/input/?i=x%C2%B2+%2B+y%C2%B2+%3D+9

anonymous · Answer

im not very good with this but that looks correct but type in the equation and select what you want it to do with it it does not show steps but will solve

anonymous · Answer

lol yeah just ype in X and Y and it will graph it 
 i use it all the time

jennyrlz · Answer

alright thanks ^.^

jennyrlz · Answer

i will see what i can do  xD

jennyrlz · Answer

but you dont happen to know if my work is correct right?

jennyrlz · Answer

i think i am right but since this isnt a test or anything i cant verify my answer with any choices :/