It's a matter of simple integration. You know that , so
A general solution is thus
firstly, if i have the function cosx-sinx=0 how do i solve it? im stumped :/
and secondly how to i find the volum of space if the function x^(1/2)*e^x revolved around the x axis 360 degrees with the limits 1 and 2?
Thanks a million!!!!!
These have nothing to do with your original question... But anyway, for the first one, plot the graphs of both sine and consine, and you'll get your answer. As for the second, you must've seen the connection between the integral and a solid obtain by revolution. Calling the volume of the solid obtained by revolving a curve around the axis between points and :