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Okay, I'm not positive that the math gods would approve of this, but here it goes. Basically what I did was rewrite the problem to isolate cos4x on one side. I then did a u-substitution for cos4x so that it would look more like cos2x because cos2x is a double angle identity. Then I substituted...

Thanks for your help, Dan. I'm always confused when it's written out in text form, but I'll try to figure it out. EDIT: I think I got it. I'm going to post a scan of my work and maybe you could check it for me Dan? It's a little convoluted, but I think it works. Give me a second to post it.

Sorry, I'm just way frustrated because I've been staring at this problem and a couple others for hours and can't figure them out. So I have very little patience right now.

Fine, "Maths." Please just ignore this thread if all you have to say is how pissed off our differences make you.

I'm doing double angle identities in math right now and I have a problem that I cannot solve. I'm being asked to verify the following identity: I drew it to make it easier on the eyes, but if you want to see it typed out, it's: 8((sin^2)x)((cos^2)x) = 1-cos4x Thanks for any help.

Come on, Vince. Stop paying for sex, you're throwing your money away.

That reporter has a weird way of speaking. She uses upward inflections almost rhythmically.

All RPGs. I have never been able to get into them. I was trying to play Super Mario RPG the other day since it's held in such high regard. I couldn't stand it. I remember playing it shortly after it came out and feeling the same way. Yeah, I'm missing out on legendary games like Chrono Trigger...

http://www.youtube.com/watch?v=AHFKxOXfL2Y And all of these. http://www.youtube.com/watch?v=xYgdE5ePM6I

I have a MacBook Pro. It's pretty good for my purposes. It's had a couple issues, but the support has been great. OSX is nice and has some pretty good software. I don't know, I like it.

I have a MacBook Pro that says it will last 2:15 with a full charge, but really, it only lasts like 45 minutes or 1 hour at best.

If the 50 megaton Tsar bomb hit Los Angeles dead-center, I would be out of the blast radius by about a mile. I'd probably die of radiation poisoning pretty quickly, though.

The camera angle in Skate and Skate 2 is supposed to mimic a skateboarding video. The person filming a skate video is usually also on a skateboard and films from a low angle with a fisheye lens. So it's not just some stupid angle they picked for no reason. It makes the board the focus and not...

You know that shitty, way overused explosion sound from like every war movie from the '50s through the '80s? I've always wanted to know the details on that sound. If you've ever seen The Longest Day or To Hell and Back, you'll know what I'm talking about. Skip to about 1:30 on this video and...

Get a math degree, make enough money doing whatever it is I'd do with that degree to be comfortable, buy a house, and have fun.

I knew a couple girls in high school who were genuinely funny. So it's possible.

There's a Type 99 Arisaka rifle but no M1 Garand?

No, don't have any plans. I don't drink anyway.

Got interested in HL2 after the source code and "beta" leak. Read the forums for a little and joined in '04.

I got a $100 Best Buy gift card for Christmas, but I have no idea what to get with it. Do you have any suggestions? We have an Xbox 360, so you could suggest some games. (I already have Gears of War 2 and Left 4 Dead). My PC sucks these days, so I can't play any new PC games. I don't want to...