Free counters!

Sunday, August 4, 2013

Integration - Trigonometric Functions, 3

Category: Integral Calculus, Trigonometry

"Published in Suisun City, California, USA"

Prove that


Solution:

Consider the given equation above


Rewrite the left side of the equation as a quotient of two trigonometric functions as follows


If 


then


Hence, the above equation becomes


Integrate the above equation using the integration of the reciprocal function formula, we have





Note: 


because the left side of the equation is a reciprocal of trigonometric function which is equal to sec x while the right side of the equation is inverse trigonometric function which is equal to an angle.



Therefore,


where C is a constant of integration.