-1
$\begingroup$

Okay, I punched this into my new calculator:

$$\frac{d}{dx}(x^2)|{x=3}$$

and it all is equal to $6$. What is this called and/or what does it do?

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    Evaluating a derivative of x^2 in respect to x at a fixed point (x = 3). Where did the sin term come from (another question)?2012-09-28
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    I got rid of it. I was just trying to figure out the math coding thing2012-09-28
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    You shouldn't write a "thank you" as an answer. This site does not function as a forum where you can write posts. It is a question and answer format. Please see the FAQ.2012-09-28
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    Yeah and under etiquette it says to be nice. not vote people down for saying "thank you"2012-09-28
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    Ok its called a derivative. Thank you Amzoti.2012-09-28

1 Answers 1

1

Use simple derivative formula to solve this problem.

In this case use the formula:

$\frac{d}{dx}(x^2) = 2x$

Now put $x=3$

Answer will then come to $6$

For formulas, you may refer to: Basic Differentiation Formulas