Recent content by realism877

Find the area of the curve r=3+2cosθ Find the area it encloses.

How do you find it on the calculator?

Homework Statement r=3+2cosθ Homework Equations The Attempt at a Solution The text shows that it's from 0 to 2pi. How did it come to those limits without graphing? I set r=o. What do I do from there?

I did that. I already have the solution. I'm just trying to figure out where the 3 came from.

Homework Statement (2(x)^2)/((x+1)((x)^2+1)) from 0 to 1 The indefinite answer is (1/2)ln2+ln2-(pi/4) How did it get to this answer?(3/2)ln2-(pi/4)

It goes in increments of 180

I want to know how to do this algebraically

I need to find out if this function is convergent or divergent when finding the limit to infiniti. nsin(npi) How do I solve this? Do I use the squeeze theorem or lhospital rule?

I got how to add them, but how do I find the difference? I need help finding the angles. How do I do that? I know I have to put b in the negative direction. Which I did, but what is its angle? What is the angle of a?

I know how to get 9 as the solution. HOwever, I don't know how they got 34 degrees as a solution.

Do I use the law of sines or just the pythogrean theorem?

Yes And get the angle

We have to find the magnitude and direction of the sum of vector A and B.

Here is the image of the solution

Homework Statement Vector a =8 vector b=15 the solution is 9 and theta is 34 degrees I want to know how did they come up with that solution. Homework Equations The Attempt at a Solution