Integration?

1 ⤊

Find the area enclosed by graph y=e^-x, the x axis and the y axis

2007-02-04 21:22:49 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

I assume you mean the area in the first quadrant.

∫e^(-x)dx = -e^(-x) {evaluated from 0 to ∞}
= 0 - (-1) = 1

2007-02-04 21:28:33 · answer #1 · answered by Northstar 7 · 1⤊ 0⤋

I do not think that there is an enclosed area. The limits of integration can therefore not be found.
What do you think yourself?

2007-02-04 21:34:11 · answer #2 · answered by Como 7 · 0⤊ 1⤋

intg e^-x dx= -e^-x +c
put in limits to find area

2007-02-04 21:27:33 · answer #3 · answered by Maths Rocks 4 · 0⤊ 0⤋