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Is there a "simple" calculus equation where the answer is 18?

We're baking a birthday cake for our son (turning 18) and want to decorate it with an equation instead of "happy birthday," but don't know calculus! (He is taking multivariable calculus, so we'd like to use the "Fundamental Theorem of Calculus" somehow, if possible, because it sounds so grand.)

 a

∫ f(x)dx=F(b)-F(a) b

asked Oct 18 '12 at 13:50

jimclara's gravatar image

jimclara
16112

closed Oct 18 '12 at 22:35

kevinlockergnome's gravatar image

kevinlockergnome ♦♦
10.8k424

Kevin, did you read the question? I don't see how this could be a homework question...

(Oct 19 '12 at 00:56) sfrancis928 sfrancis928's gravatar image

This is a textbook case of a homework problem. Even though it does not say it, it is easily identifiable as one

(Oct 19 '12 at 02:19) kevinlockergnome ♦♦ kevinlockergnome's gravatar image
1

I've taken lots of calc courses. I've never been asked to find just any old random equation involving calculus that equals 18... I think we're safe here.

(Oct 19 '12 at 02:45) sfrancis928 sfrancis928's gravatar image

Its a formality

(Oct 19 '12 at 03:09) kevinlockergnome ♦♦ kevinlockergnome's gravatar image
1

At kevinlockergnome: I'm 58, my son is 18. It was his birthday today. He's taking a multivariable calculus class this semester. When he has a problem with homework he calls up classmates until he gets an answer. You probably haven't been in school for a while, or have kids in high school. Happy Friday! Jim

(Oct 19 '12 at 18:28) jimclara jimclara's gravatar image

I am in college right now... as a matter of fact

(Oct 20 '12 at 03:34) kevinlockergnome ♦♦ kevinlockergnome's gravatar image
showing 5 of 6 show all

The question has been closed for the following reason "This site is not for your homework help" by kevinlockergnome Oct 18 '12 at 22:35


How generic do you want it? Here's a simple one (avoiding having the number 18 in the left side of the equation):

alt text

answered Oct 18 '12 at 16:00

sfrancis928's gravatar image

sfrancis928
2.6k334479

edited Oct 18 '12 at 16:00

Thank you! That's perfect!

(Oct 18 '12 at 19:00) jimclara jimclara's gravatar image

Awesome, glad I could help!

(Oct 18 '12 at 22:19) sfrancis928 sfrancis928's gravatar image

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Asked: Oct 18 '12 at 13:50

Seen: 583 times

Last updated: Oct 20 '12 at 03:34