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Saturday, December 14, 2013

Integration - Algebraic Functions, Powers, 4

Category: Integral Calculus

"Published in Newark, California, USA"

Evaluate


Solution:

Consider the given equation above


Did you notice that the given equation can be integrated by power formula? Well, let's check if we can integrate the given equation by power formula. If u = (3x - 2), then du = 3dx. Since the coefficient of dx which is 3 is missing, then we can provide the missing coefficient as follows






Therefore, the answer is

 
where C is the constant of integration.
 

Friday, December 13, 2013

Integration - Algebraic Functions, Powers, 3

Category: Integral Calculus

"Published in Newark, California, USA"

Evaluate


Solution:

Consider the given equation above


The first thing that we have to do is to get the product of two binomials as follows




Next, get the integral of each term with respect to x as follows





Therefore, the answer is


where C is the constant of integration.
 

Thursday, December 12, 2013

Integration - Algebraic Functions, Powers, 2

Category: Integral Calculus

"Published in Newark, California, USA"

Evaluate


Solution:

Consider the given equation above


There are two ways in getting the integral of the given equation with respect to x. 

1st Method: We can do the integral of each term by power formula as follows






Therefore,


where C is the constant of integration.

2nd Method: We can do the integral of the whole function by power formula as follows


where u is a function of x and du is the differential of a function with respect to x. In this case, let's consider again the given equation


If u = (x - 7), then du = dx. Since, the power formula is applicable to the given equation, then we can integrate the given equation by power formula as follows




Therefore,


where C is the constant of integration.