Nathan

identity is:

tanx/(1-cotx) + cotx/(1-tanx) - 1 = secx*cscx

i'm not looking for an easy way out, but a hint or two would be really helpful. I have been trying it for 2 hours and it's terrible.

I use sinx^2 + cos^2x = 1 to convert csc, cot, sec and tan... but I keep getting different answer each time I go through it (which I guess is a good thing). My method that got me closest was to not convert tan, cot, etc into sin and cos until that was the only thing left to do, then I ended up having to divide secxcscx by itself.

any help would be appreciated,

thanks!

I'm trying to lose a few pounds - about 5 maybe 10lbs. And then after that I need to build lean muscle, but NOT gain mass (at least too much mass). So I'm looking at proteins with low fat and cholestrol content - but there are SO many of them I have no idea what to look for. Does anyone have any recommendations for which proteins I should use?

I weigh about 170. I'm in the Navy, so I can't be too too big cause I need to do a lot of push-ups and run... (I'm almost breaking the height-weight limit at the moment, actually) and I think those are all the important facts.

thanks for taking your time to help me out1

The problem is: An airplane is flying with a velocity of 85.0 m/s at an angle of 24.0 (degrees) above the horizontal. When the plane is a distance 115m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.

How far from the dog will the suit case land? Ignore air resistance.

So to approach this problem, I used the equation x = x(initial) + v(initial)*time + 1/2*(a)*time

I used it to calculated the time the suitcase took to fall - so only using values with respect to the y-axis. And then I tried to use the same formula to calculate the x distance.... but that was wrong. So I used a formula in the book - which he hasn't taught yet - x = (v(initial)*cos(alpha))*time. And that still hasn't given me the right answer.

Any insight would be great! Thanks in advance and please explain work throughly as I would like to learn what I did wrong.

The problem is: An airplane is flying with a velocity of 85.0 m/s at an angle of 24.0 (degrees) above the horizontal. When the plane is a distance 115m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.

How far from the dog will the suit case land? Ignore air resistance.

So to approach this problem, I used the equation x = x(initial) + v(initial)*time + 1/2*(a)*time

I used it to calculated the time the suitcase took to fall - so only using values with respect to the y-axis. And then I tried to use the same formula to calculate the x distance.... but that was wrong. So I used a formula in the book - which he hasn't taught yet - x = (v(initial)*cos(alpha))*time. And that still hasn't given me the right answer.

Any insight would be great! Thanks in advance and please explain work throughly as I would like to learn what I did wrong.

I can't get the answer from the back of the book... I'm just getting a different answer.

so could someone give a little work and an answer so i could figure out what i did wrong, please. Thanks in advance

Use the trig/polar form to find the cube roots of z = -125i. Represent the roots graphically(use degrees)

*you also have to use demoivre's theorem

The answers given are w0 = 5(cos90 + sin90i), w1 = 5 (cos210 + sin210i), w2 = 5(cos330 + sin330i)

i am getting w0 = 5(cos30 + sin30i), w1 = 5(cos150 + sin150), w2 = 5(cos270 + sin270)

So it's not all the time. I can have sex once, but if we decide to do it a second time that night, then it just goes limp and I won't get hard again.

I'm new to having sex, this is my first sexual partner and we've been at it for about a month. So is this just something I need to build up to? Cause we've done it twice, once before.

On that note, how can I improve my sexual endurance? cause she's not orgasming just yet and I can last about 5 mins... so I think a little longer would be beneficial for both of us.

I bought a Dell Isperion or whatever it's spelled like... it was crap. So I'm returning it the day I got it.

I am going to college in 3 weeks. I need it to be good for work processing (the insperion had a crap keyboard in my opinion).

I'm gonna use it to keep intouch with family, so good resolution for Skype and pictures. Enough memory... which isn't a major concern, i can just get an external hard drive.

And I'm a musician, so I'll be doing a little bit of recording on it.

those are my three desires in an affordable laptop. I don't want to spend more than $800. what'd you think i should look into?

I was just wondering, i've looked around and have found this picture http://www.travis-usa.com/images/Music/EpiphoneGot...

but like how much would it cost? I haven't been able to find much about that, etc Would it affect my tone or sustain?

So slow twitch is like endurance muscles from doing push-ups, sit-ups, etc. Fast twitch are full force muscles from weight training.

I plan on doing both, but which should i focus more on. I'm going into the navy

So my girlfriend and i have talked about it, and decided that we were going to be a "sexually active" couple. We've tried a few times... but i can't get an erection. I read an article from askmen.com or something like that, about having performance anxiety. but I don't feel nervous around her, i'm pretty confident with my genital size and my body. I can get hard enough to put a condom on, but then it just goes away...

i know it's not erectile disfunction cause it has no problem getting hard when it's just me.

Anyone know what it is? Cause i'm lost on this... and i don't know who to ask about this kind of thing

So my girlfriend and i have talked about it, and decided that we were going to be a "sexually active" couple. We've tried a few times... but i can't get an erection. I read an article from askmen.com or something like that, about having performance anxiety. but I don't feel nervous around her, i'm pretty confident with my genital size and my body. I can get hard enough to put a condom on, but then it just goes away...

i know it's not erectile disfunction cause it has no problem getting hard when it's just me.

Anyone know what it is? Cause i'm lost on this... and i don't know who to ask about this kind of thing

So the title is the situation. And I usually camp with the bare essentials and backpack around... so what kind of things should i do to make it more fun for both of us? I still want it to be camping... not sissy junk, but any particular comforts that should not be avoided?

girls, your opinion would be very much appreciated!

and I'm not calling her a wimp... she could definitly go backpacking with me if she felt the desire to do so, but I just want it to be a nice relaxing weekend together. But still camping!

I've only been able to find them online so far. Been searching for them since forever! here is the one I'm looking for http://www.amazon.com/Train-Dragon-Pillow-Deluxe-F...

I heard you could get them at stores for considerably cheaper... cause I love my GF, but I'm also a broke teenager... so $80 is a lot at the moment.

So my dad and her dad met (borrowing some tools... classic stuff) and they like each other, but my dad lectured me afterward that the most I should be doing with her around him is holding hands.

It was dark, and getting a little chilly, so I was holding her - I also wanted to, but that's not the point. And we just talked while our dad's chatted about whatever. It's not like we were making out or anything!! So when we left I gave her a quick kiss and shook his hand and then my dad freaked out when we drove back to my house.

so what's the deal? is that just old fashion stuff?? or is it still viable like opening doors for ladies? [it being asking the dad permission before I kiss her - in front of him at least

we're high school seniors and have been going out for 3 months and a bit - if that changes anything

I really just need to get rid of some red eye.

I'm an avid cross country runner, so I have a strong core and strong legs. I also played lacrosse and lift weights, so I am fairly strong upper body wise. I do a lot of push-ups, pull-ups, sit-ups, etc also.

So I'm thinking that I will do fine as long as I learn proper form and stuff. But what other kind of things should I do to prepare, cause I don't really have access to a swimming pool at the moment. I am trying though... so beside swimming, what should I do to prepare for swim season?

okay: Ive been dating this girl for about 3 weeks. It's her birthday pretty soon. And we went to this dance and someone took our picture, and I have a copy of it. So I was thinking about getting it framed and giving that to her as a birthday present. Good idea? not to cheezy or whatever?

Opinions would be appreciated, as well as other gift ideas (if you think this ones a little... idk, blah)

Okay, so going on a date. I'm not sure if she even likes flowers... but I'm still getting her some either way - she can get over it (we're kind of good friends... if you can't tell).

So what kind? I'm not getting her roses... cause I know she doesn't like those. And at one point she tried to explain to me that different flowers and different colors have different meanings... but I didn't understand it to well. My gay friend tells me lilies are good, anyone second that? Any other flowers?

So what about colors? I know no yellow! So pinks, purples and whites are cool? If anyone would care to explain the color deal then that'd be appreciated to.

So any help would be appreciated, so thanks in advance!

PS: I'm a teenager, I'm broke, trying to keep this under $25, so if you could respect that, thanks.

This is the internet, so I don't care how metro I sound, I care about how I look!

So, I have this pair of black jeans (no idea why I have them...) but what should I wear them with? I have a black belt, so I'm good in that area, and I have a nice pair of black shoes, but I'm not sure what to wear in the torso area!?!? I don't want to wear black cause then I'll look like a ninja or something... so what kind of colors go well with mens' black jeans?

On the new Excel do you have to plug in data points or can you just plug in a formula? Cause I just can't figure out how to just plug in the formula? Will I have to end up using a different program?