Free counters!

Sunday, August 25, 2013

Integration - Trigonometric Functions, 8

Category: Integral Calculus, Trigonometry

"Published in Newark, California, USA"

Evaluate


Solution:

Consider the given equation above


There are two ways in getting the integral of the above equation. Lets consider the two methods as follows:

Method 1:

If 



then



Hence, the given equation becomes





Next, we need to eliminate secant function using the trigonometric identities as follows



The above equation becomes











Integrate the above equation using integration by powers, we have







Therefore,




Method 2:

If



then



Hence, the given equation becomes





Next, we need to eliminate tangent function using the trigonometric identities as follows





The above equation becomes











Integrate the above equation using integration by powers, we have




Therefore,