Question

Find the area inside the cardioid r=1+cos(theta) for 0 is greater than or equal to theta, which is greater than or equal to 2pi.

Answer 1

@timo86m .....do you know how to do this? :D

Answer 2

have you tried this in Polar?

Answer 3

what do u mean?

Answer 4

here you go:
http://en.wikipedia.org/wiki/Polar_coordinate_system#Integral_calculus_.28area.29

\[\rightarrow \frac{1}{2} \int\limits_0^{2\pi}(1+\cos \theta)^{2} d \theta\]

Answer 5

((3pi(x))/(2))

Answer 6

now what?

Answer 7

?? im lost, what is 3pi/2 for

Answer 8

value of the integral...

Answer 9

oh sorry i was using wolfram and it gave decimal
anyway, that is the area

Answer 10

my online homework thing just crashed so i cant check the answer....hold please:) lol

Answer 11

okay so its 4.71239 :D