Recent content by mathnewbie1

Thanks , how do I do that , do I pick two values between each interval and solve the normal way ?? - - - Updated - - - Thanks , how do I do that , do I pick two values between each interval and alive for each value - - - Updated - - -

I have been asked to finding the area of the graph of the function F(x)=(3x-\pi)\cos\frac{1}{2}x between x=-\pi and x=\pi using integration by parts to integrate the function I get \int 2(3x-\pi)(\sin\frac{1}{2}\pi)+12\cos\frac{x}{2} when I work out the integral for x=\pi and x =-\pi I get...