5.2 gallons you multiply 20*.26
The indefinite integral expressed as an infinite series is;
<h3>How to find indefinite integral?</h3>
We will first have to look for the Maclaurin series of arctan(x).
We'll recall that from online tables of integral, this Maclaurin series of arctan(x) will have the general formula;
When we apply that general Maclaurin series of arctan(x) to our question of arctan(x²), we have the expression as;
⇒
We now integrate the expression that we got above in the following manner to get;
⇒
Thus, that expression gives us the indefinite integral of arctan(x²) as an infinite series.
Read more about the indefinite integral at; brainly.com/question/12231722
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