Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2007-07-10 00:45:31

buzhitao
Member
Registered: 2007-07-10
Posts: 2

Pls Help Me !!! Gratefulz For Help!!!!!!

Find the area bounded by y=tan x , the y-axis,  and y=3.

Bros pls help me with this.  It requires to make X the function of y. But how ? Can your show specify steps to explain?THX!

Offline

#2 2007-07-10 09:36:59

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

Re: Pls Help Me !!! Gratefulz For Help!!!!!!

If you want the area of this, it's simple:
You don't have to use arctan in the integral, just for a point.
The point where the line and the tan intersects has x-axis arctan(3).
Now if you draw a verical line from this point, the area of the below-the-tan part will be exactly


Now to get the area you simply substract this from the area ot the rectangle, which is 3*arctan(3).
So:

Last edited by krassi_holmz (2007-07-10 09:38:23)


IPBLE:  Increasing Performance By Lowering Expectations.

Offline

Board footer

Powered by FluxBB