MedVision ad

Integration of Logarithmic functions question, please help! (1 Viewer)

Joined
Aug 23, 2011
Messages
111
Gender
Undisclosed
HSC
N/A
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
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
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
Just make a rectangle and integrate where you are supposed to:

Solution
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top