C chris_power_96 Member Joined Aug 23, 2011 Messages 111 Gender Undisclosed HSC N/A Sep 21, 2012 #1 Find the area shaded which is bound by the curve y=e^x, the line y=e and the y axis
Carrotsticks Retired Joined Jun 29, 2009 Messages 9,494 Gender Undisclosed HSC N/A Sep 21, 2012 #2 Find the area of the rectangle that encloses the entire area, then subtract the area between y=e^x, y=e and the X axis.
Find the area of the rectangle that encloses the entire area, then subtract the area between y=e^x, y=e and the X axis.
zeebobDD Member Joined Oct 23, 2011 Messages 414 Gender Male HSC 2012 Sep 21, 2012 #3 Not possible to integrate Ln(y) at 2u level so you must use area of rectangle - area bounded by the x axis Since e^x cuts the y axis at 1, and at y = e , x = 1 Area of triangle = e x 1 = e units^2 Area of unshaded region = integrate from 0 to 1 [e^x] Area of shaded region equals e-[e-1] = 1 units^2
Not possible to integrate Ln(y) at 2u level so you must use area of rectangle - area bounded by the x axis Since e^x cuts the y axis at 1, and at y = e , x = 1 Area of triangle = e x 1 = e units^2 Area of unshaded region = integrate from 0 to 1 [e^x] Area of shaded region equals e-[e-1] = 1 units^2
Sy123 This too shall pass Joined Nov 6, 2011 Messages 3,730 Gender Male HSC 2013 Sep 21, 2012 #4 Just make a rectangle and integrate where you are supposed to: Solution