# Fun with Integral Calculus, or I'm totally not getting laid.

**URL:** <https://forums.speedlife.net/t/fun-with-integral-calculus-or-im-totally-not-getting-laid/241653>\
**Category:** Shift518 Automotive\
**Created:** [January 28, 2009, 5:22pm UTC](https://forums.speedlife.net/t/fun-with-integral-calculus-or-im-totally-not-getting-laid/241653 "2009-01-28T17:22:31Z")\
**Posts on this page:** 1\
**Showing post:** 39

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**Author:** ![dkid15](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dkid15/32/6398_2.png) [@dkid15](https://forums.speedlife.net/u/dkid15)\
**Post date:** [January 29, 2009, 3:33pm UTC](https://forums.speedlife.net/t/fun-with-integral-calculus-or-im-totally-not-getting-laid/241653/39 "2009-01-29T15:33:11Z")

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> [@where to go for my bday](https://forums.speedlife.net/t/where-to-go-for-my-bday/13204/35):
>
> +1 on calc being important for engineering (this was a nice refresher, I see OsoiNA6 thought to so too). Otherwise it’s a big waste of time.
> 
> +eleventy zillion and one. I’ve only had one good math teacher.
> 
> integral of sinx/cosx is the integral of tanx which is an identity you just memorize.  
> ![http://www.math.ucdavis.edu/~kouba/CalcTwoDIRECTORY/trigintdirectory/img28.gif](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/3X/b/e/beb22f72b0a92c5fdfa9cfcaa886f19b85725e4f.gif)  
> [Trigonometric Integrals](http://www.math.ucdavis.edu/~kouba/CalcTwoDIRECTORY/trigintdirectory/TrigInt.html)

Indeed tungsten lol, there are like 10 integrals that you just have to know. Fortunately some are close to oppopsits. f’(cosx) = -sinx and the integral of sinx = -cosx +C . Its all alot easier if you know your trig identities and double angle formulas too.

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