/sci/ - Science & Math

>>6455207
a set has infinite cardinality iff it is equipollent with one of its proper subsets. A\C is a proper subset of A iff AuC≠O.

You're welcome. Post your questions.

<span class="math">\frac{5 - \sqrt{4 - (3+h)} - 4}{h} = \frac{1 - \sqrt{1 - h}}{h} = \frac{(1 - \sqrt{1 - h})(1 + \sqrt{1 - h})}{h(1 + \sqrt{1 - h})} = \frac{1 - (1-h)}{h(1 + \sqrt{1 - h})} = \frac{h}{h(1 + \sqrt{1 - h})} = \frac{1}{1 + \sqrt{1 - h}} \to \frac{1}{2}[/spoiler]

You're welcome, OP.

>>4562269
Now consider cos^2(x) + sin^2(x) = 1. You might want to write it as 1 - sin^2(x) = cos^2(x).

>>4562197
>>4562192
Can you work it from there or do you need another hint?

>>4562192

2/(1+cos(x)) - tan^2(x/2)

= 2/(1+cos(x)) - sin^2(x)/(1+cos(x))^2

= 2*(1+cos(x))/(1+cos(x))^2 - sin^2(x)/(1+cos(x))^2

= (2 + 2cos(x) - sin^2(x))/(1+cos(x))^2

Use the identity tan(x/2) = sin(x)/(1+cos(x)).

Do all your homework on time, understand the material, and don't ask dumb questions in class.

>math is useless, why am I ever going to need it?!

>what is the point of this assignment? I'm not doing it but I feel I should still be marked for it!

>how is this "English"? I speak English. I should be getting a 100.

>Yeah I'm taking construction, autobody, and shop class instead of math. I wanna be a mechanical engineer.

>Physics class
>HOW DO YOU KNOW THAT'S REAL
>CAN YOU PROVE THAT
>WHAT IF IT'S WRONG
>CAN YOU GO BACK IN TIME
>EINSTEIN/RELATIVITY
>CAN YOU VERIFY THAT USING OBJECTS ONLY IN THIS CLASSROOM
>PROVE IT
>WHAT IF
>WHAT IF
>WHAT IF
>WHAT IF

>omg dude Im sooooo drunk right now
>i got sooooo drunk last night

A technician is someone who helps someone better in whatever field you have your degree in.

Technicians generally only need college diplomas (1-2 year program) vs a bachelor (4 year).

By keeping the center of mass ahead of the wheels.

>What do you guys think I should do? Should I consider taking some courses in programming and pursuing a major in that? Should I consider applied mathematics as a major? What fields require a decent background in mathematics, yet still utilize computers?

How about... COMPUTER SCIENCE.

First of all, nice try. That's not Calculus III at all!
That's high school vectors!
Second of all, since you lied, I'm not helping you! Haha ha!

Two atoms stand side by side.

The first says, "I think I lost an electron."

The second says, "Are you sure?"

The first one says, "Yes, I'm sure."

>>3806488
g always changes. g changes based on how far away from the earth you are.

>>3805768
LOL.
Seriously, who taught you math? Was it your retarded sister who has cerebral palsy?

50a: 340
50b: 760
50c: 800
50d: 7

51a: 360
51b: 360
51c: 65
51d: 15

52: MS, SR

53: x = 5
KM

54: x = 16

55: x = 2, y = 3

Hope that helps, OP!

Wow, this is pretty embarrassing! Do you think you're smart for coming up with this?

x = 2y / (x^2 - y)

dx/dy = d(2y / (x^2 - y)/dy

There you are!

>>3797463
American?
I live in Sheffield in a flat some feet from the uni there, mate.

A number whose square roots are 1 and 5? Let's see... how about 25

So.

3(x-25) = 1

>space is a vaccuum
>yet, earth, solar system, sun, asteroid belt, etc exist within it
Hmmm

Ahem.

Well, 64r = r^4
Subtract an r from both sides
64 = r^4 - r
Factor
(8)(8) = r(r^3 - 1)
r = 8
And
8 = r^3 - 1
9 = r^3
r = 3

So r is equal to either 3 or 8. Good luck, OP.

>>3781658
>brains
>France

Aha hah a....