Question

the curves parametric equations are :
\[x=a(2\cos \theta - \cos2 \theta),y=a(2\sin \theta + \sin2 \theta)\]
find the area of the area consists with this curve's rotation over the axis

Answer 1

\[\int\limits_{}^{}(ydx - xdy)/2\]

Answer 2

put in x and y parametrically

Answer 3

ishaan chat kar bhai!

Answer 4

I feel something is wrong in your question.

Answer 5

mr.math!!

Answer 6

Me too Lol

Answer 7

@karate: You're late!

Answer 8

Can it be broken english?

Answer 9

i dont mean to be mean but please change ur pic mr.math it scares me

Answer 10

im late?! what?! how?1 y?!

Answer 11

Haha, Yeah that and something else I don't know! :D

Answer 12

is it asking fr the area enclosed by the curve?

Answer 13

2sintheat - sin2thta

Answer 14

You said you would go for 10 minutes, but you took more than an hour @karate :P

Answer 15

no i didnt
i came back but my internet didnt work and i have been here for almost 2 hrs now! ur late!

Answer 16

With Rotation too, In my opinion rotation should create volume it generally does not sure..

// I haven't solve these before :-/

Answer 17

:-{