Radians Definition and 109 Threads

The first one, integration, I just want to check my answer. \int \frac{1}{64} (\cos6\theta + 6\cos4\theta + 15\cos2\theta + 20) = \frac{1}{64} (\frac{\sin6\theta}{6} + \frac{6\sin4\theta}{4} + \frac{15\sin2\theta}{2} + 20\theta + c I just wasn't sure if the integral of a constant wrt theta...

I need help with radians.. One of my questions is: An angle of 0 (with line through it) =249 degrees is equivalent to how many radians? Answer in units of rad. Thanks!

why radians are used in calculus instead of degrees?

Anyone know enough about TI-83s to help me out? For some reason whenever I try to graph a polar equation on mine it gives me what the graph should look like for radians when degrees is the mode of choice and vice versa. For example, if I were to graph sin(theta) I get a nice pretty circle when...

I tried some formulas on my graph calculator after reading about root mean square calculations of power and physics. Plot these using radians: Y1 = (sin(X)^2)^(1/2) Y2 = (tan(X)^2)^(1/2) Y3 = (tan(X)^3)^(1/3) Axis: 0<x<2(pi) 0<y<2(pi) or zoom to fit! kinda cool huh! Has anyone...

I'm being newly introduced to Radians. We touched on it last year in Math, but not long enough for me to soak any of it. I can't even begin to answer half of the problems in my textbook because I don't know how to get the radian measurement, or how to get the angular measurement when I need it...

I just got a review sheet in math that contain questions that I don't know how to do from last year. ONe asks to solve for all values of theta of [0,2pi] in radians: 2sin^2(theta)+sin(theta)-1=0 any ideas?

this should be a simple question, but I am just not getting the right answer. I need to change 25 degrees to radians. I know, that 360 degrees = 2pi radians, but I am not getting the right answer. thanks for the help

I know this is an easy problem, but I need to know 3 sets of polar coordinates for the Cartesian coordinates (-4,4\sqrt{3}}) So I graphed the points and got the hypotenuse, r = 8. How do I convert 4\sqrt{3}}) to degrees? (4\sqrt{3}}) = 6.92820 Is this in radians...