[Q2] Perform the numerical integration for the following unction dx 1+x2 Using mid-point method with h=0.2 determine bounds for the approximation error.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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[Q2] Perform the numerical integration for the following unction
dx
1+x2
Using mid-point method with h=0.2 determine bounds for the approximation error.
Transcribed Image Text:[Q2] Perform the numerical integration for the following unction dx 1+x2 Using mid-point method with h=0.2 determine bounds for the approximation error.
Expert Solution
Step 1

Given that,

Advanced Math homework question answer, step 1, image 1

Interval is [0,1] and h = 0.2.

Hence the length of each subinterval is 0.2

Form subinterval as [0,0.2], [0.2,0.4], [0.4,0.6], [0.6,0.8] and [0.8,1].

The number of intervals are 5, so n = 5.

 

 

Step 2

Now we need to find midpoint f each interval:

Midpoint of [a,b] is,

Advanced Math homework question answer, step 2, image 1

the midpoint of each interval as follows:

For [0,0.2],

Advanced Math homework question answer, step 2, image 2

For [0.2,0.4]

Advanced Math homework question answer, step 2, image 3

For [0.4,0.6]

Advanced Math homework question answer, step 2, image 4

For [0.6,0.8]

Advanced Math homework question answer, step 2, image 5

For [0.8,1]

Advanced Math homework question answer, step 2, image 6

 

 

 

 

 

Step 3

Now find the value of a function at each midpoint,

Advanced Math homework question answer, step 3, image 1

By using midpoint rule,

Let  xi be  the midpoint of the interval [a,b] then the approximation is called midpoint rule approximation:

Advanced Math homework question answer, step 3, image 2

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