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integration (1 Viewer)

Thread starter ashokkumar
Start date Mar 21, 2010

A

ashokkumar

Mr

#1

find the integral of (secx)^3*tanx dx.

Pwnage101

Moderator

#2

let u=secx
use the fact that d/dx(secx)=secxtanx

P

pwoh

O_O

#3

$\int \sec^3 x\tan x dx \\= \int \sec^2 x(\sec x\tan x) dx \\= \int \sec^2 x d(\sec x) \\= \frac{\sec^3 x}{3} + C$

A

ashokkumar

Mr

#4

thank you

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