Lexie!!!!!! Aaaaaaaaaaaahhhhhh!!!!

[KillerMuffin]

Would you please explain to me how in the fuck anyone could possibly come up with 0, pi/3, 2pi/3 from this STUPID thing???

Find the solutions of the equation that are in the interval [0,pi) use an addition or subtraction formula.

sin4t cost = sint cos4t

I'm going to murder my trig teacher. He looks like Yoyotwat. He sounds like Yoyotwat. He makes less sense than Yoyotwat. He stares at my breasts when I ask him a question like Yoyotwat would if he could. I swear he's thinking 'HEEEEEEEEEEEE!!!!' with every statement.

 

[seXieleXie]

i just saw this. give me a few

 

[Marxist]

i just saw this. give me a few

She's gotta go put on her Supergirl outfit. It's really cute. The boots are to die for.

 

[KillerMuffin]

Well, don't hold her up. I'm screeching at the walls again.

 

[Svedish_Chef]

t being Tan?

 

[seXieleXie]

muff, do you have AIM, Yahoo, MSN or any other messanger? maybe it would be better to do this without an audience. it's also difficult to type math symbols.

 

[Azwed]

I would help but I sealed off the part of my brain that deals with trig. It is now encased in concrete.

Edit.

Use the PM's Lexi I dont think KM has messenger stuff.

 

[seXieleXie]

t being Tan?

t is the variable

 

[Cheyenne]

I'm going to murder my trig teacher. He looks like Yoyotwat. He sounds like Yoyotwat. He makes less sense than Yoyotwat. He stares at my breasts when I ask him a question like Yoyotwat would if he could. I swear he's thinking 'HEEEEEEEEEEEE!!!!' with every statement.

You mean my old calculus professor teaches trig now?

 

[Guru]

 

[seXieleXie]

i know no one cares, but i'll post the answer anyway.


first, subtract sin (t) cos (4t) from both sides of the equation:

sin(4t) cos (t) [-sin (t) cos (4t)] = sin (t) cos (4t) [-sin (t) cos (4t)]

that gives you:

sin(4t) cos (t) - [sin (t) cos (4t)] = 0

if you use a subtraction formula as instructed (which you have to either derive, memorize, or look up in a book) you get this:

sin (4t-t) = 0

which simplifies to:

sin (3t) = 0

then you want to find the values between 0 and pi for which this equation is two. you can do that with a graph, or you can memorize the values on sine at various key angles. but it works out to 0, pi/3 and 2pi/3.


simple as pie

 

[KillerMuffin]

Lexie rocks.

And Marxist is right. Those supergirl boots are to die for.

 

[Azwed]

It's been so long since I needed trig... I think trig is one of those things that nobody *really* ever needs. Ever.

You would think so but if I had actually continued in Engineering I would use the basic to moderately difficult trig functions almost everyday.