- #1
Badgerspin
- 15
- 0
This question may be something of a dumb one. I feel I should know this, but well, I don't.
I'm being asked to find the perimeter inside of the curve r=15sin(theta) and outside of r = 1
Setting up the equation I can do. If it were just an indefinite integral, this would be cake. My challenge right now is finding the angle in which to compute the problem. From where to where? Let x = theta
15sin(x) = 1
Sin(x) = 1/15
For what value of theta would I get 1/15? I can get the numeric value by taking the arcsin, but I need to be able to show it in the format (pi/#, or perhaps ((#pi)/#).
While I'm on that note, for future reference, is there any easy way to compute something like this where I'm being asked oddball angles?
I'm being asked to find the perimeter inside of the curve r=15sin(theta) and outside of r = 1
Setting up the equation I can do. If it were just an indefinite integral, this would be cake. My challenge right now is finding the angle in which to compute the problem. From where to where? Let x = theta
15sin(x) = 1
Sin(x) = 1/15
For what value of theta would I get 1/15? I can get the numeric value by taking the arcsin, but I need to be able to show it in the format (pi/#, or perhaps ((#pi)/#).
While I'm on that note, for future reference, is there any easy way to compute something like this where I'm being asked oddball angles?