Recent content by mathzeroh

Triple Integral Evaluation (quick and easy) Homework Statement \int_{0}^{1} \int_{x^2}^{1} \int_{0}^{3y} ({y+2x^2z})dz dy dx Homework Equations None. The Attempt at a Solution Here is what I got at the end (the LaTeX takes too long to code in here, plus its not showing up)...

test: (-\frac{1}{2}\ln{\sin{x}}+C) x^2\sqrt{x} NOTE: the crash course has a major typo (if I'm not mistaken) look at the 2 things I've encircled

well thanks a lot for your help. that makes sense. i guess its just something that will take a little while to sink in completely, but i know that once know it fully, i'll be better at knowing what to do. so the answer to my question of f'(-4) in that problem was -2, though right?:blushing...

so was that it? -2?

the slope of that line is: 2-(-2)/(-5)-(-3) =2+2/-5+3 =4/-2 =(-2) is that it? :rolleyes: :confused:

i don't understand. what about the quotient formulas?

i know that at a specific point, it's the equation of the tangent line. but what about that example problem?:confused:

In light of my current failure of the first exam of my calculus class, I've been a bit discouraged, but i try not to let these grades get me down. with that said, can anyone be so kind as to help me wrap my mind around the concept of derivatives? i have a shaky understanding of them as it is...

where is everybody?

Oh, hey thanks a lot. But how do I relate that bit of information to the problem?

ok my final exam for chem is tomorrow and i need help badly on this practice problem! here it is: 3. When 9.250 kJ of heat is added to 20.0 g of ice at 0.0 degrees Celcius, what is the final temperature of the water? The heat of fusion for water is 335 J/g. I don't know how on Earth to...

hmmm i seem to be having a little bit of a problem with uploading the images. i think there's a bug or something on the forum.. [edit:] The attached images that were supposed to be up there:

Now obviously, ionic bonds are "weaker" than covalent bonds, but my question is that according to the attached image, you can't necessarily have crystals being formed in a covelant bond as you would in an ionic bond, right? And also, when an ionic bond occurs, what makes it possible for a...

true, but i thought since it said that only the first two orbitals of the "p" subshell contain electrons, i thought that since the lowest level energy shells get filled up first, only the -1, and 0 would be the only possible orbitals where electrons are located. is that wrong of me? :frown...

Good evening scholars! i just had a couple of questions about QNs. ok so the problem says: Give the sets of {n, l, m, s} for the electrons in: a) 4p^2 b) 6s^2 i just want to see if I'm on the right track. here's what i put for the first one (a): n= 4 l= 1 m= -1, 0 s= +/- 1/2...