Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

In finding the area in Polar Coordinates...Why does the lower limit which was -pi/4 turns into 0? See below... Find the area enclosed by one loop of the four-leaved rose r=cos2theta I want to find what will make cos2theta equal 0, right? And that will be pi/2 and 3pi/2 but I will have to divide by 2 which will turn theta into pi/4 and 3pi/4.

OpenStudy (anonymous):

I know how to solve this problem, I just do not know why 0 is now the lower limit!

OpenStudy (anonymous):

because of symmetry, you can find the area of half the petal going starting from 0

OpenStudy (anonymous):

Is it because it is a loop and that it must return back to 0?

OpenStudy (anonymous):

|dw:1338070654106:dw|

OpenStudy (anonymous):

Are you shading half of a whole loop?

OpenStudy (anonymous):

Thanks ..I think I get it!

Can't find your answer?
Make a FREE account and ask your own question, OR you can help others and earn volunteer hours!

Latest Questions

kapalottt:
The number of people who participate in the community band over four months is shown in the graph.

8 hours ago
1 Reply
0 Medals

Babyplier:
Hey everybody. Just a reminder that with everything going on more people be trying to find things to do which means more people will find their way here.

2 hours ago
2 Replies
0 Medals

Babyplier:
SO I KNOW IT HAS BEEN A LONG TIME SINCE I HAVE BEEN ON QC SO IMMA POST MY NEWEST

2 hours ago
13 Replies
1 Medal

philly:
Your parents are purchasing a mobile home for $89,000. The sales tax is 4.2%, they make a $3,000 down payment.

1 day ago
6 Replies
3 Medals

julenbrainsmall:
Can someone assist me with this? 1. A light bulb is shown below, shining into a concave mirror, with its original light lines visible.

1 day ago
13 Replies
5 Medals

darkknight:
How to write the equation of a parabola knowing the focus and its directrix.

1 day ago
3 Replies
3 Medals

KaedenWolf:
(08.03 MC)The dot plots below show the ages of students belonging to two groups of salsa classes: A dot plot shows two divisions labeled Group A and Group B

1 day ago
1 Reply
1 Medal

bigshlongjoe:
What was the experimental probability for each dinosaur from Trial 1? Trial 2? Tr

1 day ago
1 Reply
2 Medals

princeesss:
Milicent finds a plant in her backyard. It is tall and has large cones. What did

1 day ago
1 Reply
1 Medal