I got out of class today thinking I'd be okay. I ran through practice exams and I realized my chances are akin to those of a snowball's in hell...I'm teetering on the verge of a complete panic attack.
I've had a perfect storm of conditions in regards to prepping for my exams this week. I was pretty to really sick all of last week and over the weekend, and last night I wound up with a migraine as I was scheduled to go to a calc review session.
I don't expect you guys to be able to help me through all of it in the next three hours, but it's largely improper integrals, partial fractions where the decomposition of the denominator has no real roots, and some various integrals of trig functions. I can do a lot of the easier problems involving these, but past a certain point I'm over a barrel. Take this, for instance:
I was rather perplexed.
EDIT: I'm running over the answers to these practice exams; it appears that most of my mistakes are a result of not seeing some basic stuff. Back to the notes.
Just remember, sine squared of u plus cosine squared of u is equal to 1. Cosine to the fourth of theta can then be expressed as cosine squared of theta plus cosine squared of theta times sine squared of theta.
EDIT: I'm running over the answers to these practice exams; it appears that most of my mistakes are a result of not seeing some basic stuff. Back to the notes.
Yeah, it's all in the trigonometric identities. Here's an example of using the identity \cos^2\theta = \frac{1+\cos 2\theta}{2} to derive an expression for \cos^4\theta You ought to be able to integrate this.
I got through it after realizing that I just needed to square the half-angle identity. I'm feeling a bit better, not tremendously though. I'm still nervous.
Excess fail icing: I was not informed that DDR3 at 1600MHz was not compatible with the i5 750. Time for an RMA. FFFFFFFFUUUUUUUUUUUUUUUUUUU.
I got through it after realizing that I just needed to square the half-angle identity. I'm feeling a bit better, not tremendously though. I'm still nervous.
Good luck. Feel free to ask further questions while people are still awake.
I always liked math classes. I only disliked repetitive busy-work homework. I actually convinced a teacher to assign only one problem that demonstrated a given concept and only assign more problems on that given concept to those that couldn't successfully complete the first problem.
That article is spot on. Expiration dates, sell by dates, and all those things, are good estimates of shelf life, but they're not gospel. Milk can spoil 2 days before its expiration date or be fine for a week after. There are also absolutely no legal consequences to those dates, at least in New York. They're guidelines for consumers and retailers.
The only way to know if something is spoiled is to smell it, look at it, or taste it. If it smells funny, throw it out. Seriously. That's it. Spoilage is based partly on the native microbial load of the food, and partly on the way it is handled and stored.
It's also worth noting that many foodborne pathogens do not need to be the cause of obvious spoilage in order to make you ill. A very small dose, less than 12 cells, of E. coli O157:H7 is sufficient to cause a severe illness, and those 12 cells will never cause apparent spoilage. Listeria monocytogenes never causes any obvious spoilage, and the severe illness it causes has a 20 - 30% mortality rate.
So, no, dates on food don't really mean much at all.
Thermochem exam tomorrow. I'm more prepared than I was for calc, but not by loads. Luckily, these are curved. Usually heavily.
This is the week from hell. I have classes and exams from 11a-8p tomorrow, and then I need to prepare a chem lab and study for a philosophy quiz, and then wake up at 8a Friday morning. I also need to find an apartment this weekend.
An old friend of mine from the Scouts just attempted to Add me to his As-Of-yet unborn Fetus's facebook profile. AH-HA-HA-HA-HA-HA fuckno.
1)That's fucking creepy, dude. 2)Your unborn fetus doesn't need a facebook profile, Jackass. At least wait until it's born, or even better, it can decide if it wants a facebook profile for itself.
Seriously, if this kid ends up educated, not on the Dole, and contributes anything meaningful to society, I'll be astounded.
Comments
I got out of class today thinking I'd be okay. I ran through practice exams and I realized my chances are akin to those of a snowball's in hell...I'm teetering on the verge of a complete panic attack.
I've had a perfect storm of conditions in regards to prepping for my exams this week. I was pretty to really sick all of last week and over the weekend, and last night I wound up with a migraine as I was scheduled to go to a calc review session.
FUCK. I'm going to have to wake up at eight and hope my TA's office hours can save me.
I was rather perplexed.
EDIT: I'm running over the answers to these practice exams; it appears that most of my mistakes are a result of not seeing some basic stuff. Back to the notes.
Cosine to the fourth of theta can then be expressed as cosine squared of theta plus cosine squared of theta times sine squared of theta.
You ought to be able to integrate this.
Excess fail icing: I was not informed that DDR3 at 1600MHz was not compatible with the i5 750. Time for an RMA. FFFFFFFFUUUUUUUUUUUUUUUUUUU.
The only way to know if something is spoiled is to smell it, look at it, or taste it. If it smells funny, throw it out. Seriously. That's it. Spoilage is based partly on the native microbial load of the food, and partly on the way it is handled and stored.
It's also worth noting that many foodborne pathogens do not need to be the cause of obvious spoilage in order to make you ill. A very small dose, less than 12 cells, of E. coli O157:H7 is sufficient to cause a severe illness, and those 12 cells will never cause apparent spoilage. Listeria monocytogenes never causes any obvious spoilage, and the severe illness it causes has a 20 - 30% mortality rate.
So, no, dates on food don't really mean much at all.
In short, you need to stay connected to the internet in order to play the single player PC version of Assassins Creed 2
Also going on Day 5 of being without my computer. This is really starting to annoy me.
This is the week from hell. I have classes and exams from 11a-8p tomorrow, and then I need to prepare a chem lab and study for a philosophy quiz, and then wake up at 8a Friday morning. I also need to find an apartment this weekend.
A Rage comic would go well here.
1)That's fucking creepy, dude.
2)Your unborn fetus doesn't need a facebook profile, Jackass. At least wait until it's born, or even better, it can decide if it wants a facebook profile for itself.
Seriously, if this kid ends up educated, not on the Dole, and contributes anything meaningful to society, I'll be astounded.