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SkaematikBest ResponseYou've already chosen the best response.0
3rd to 4th line  the numerator shows s^3 but a c appeared
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
You also made a mistake on the RHS. You can't cross out the sin's and cos's like that.
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Instead there is a trig identity there.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
how do i fix this ? :S
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
There is a trig identity on the RHS.
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
At the 4th line, try combining the denominator
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
Doesnt the denominator get cancelled out already ?
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
@Dido525 like this dw:1353385466311:dw
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
dw:1353385573816:dw
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
For the left hand side, from the 3rd line, combine the denominator Then, factor the numerator This will allow you to use a trig identity to prove the original equation
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
it's okay, but is that way correct now ?
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
@Skaematik like this dw:1353385871631:dw
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
\[\frac{ s ^{4}+c ^{4}+2s ^{2}c ^{2} }{ cs }\]
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
i'm having difficulties seeing how it get's the fourth power, can you please explain
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
@burhan101 : TO be honest I would only change ONE side to try and make it equal to the other not manipulate both.
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
\[\frac{ s ^{2}s }{ c } + \frac{ c ^{2}c }{ s } + 2s\]
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
Make the denominator cs Multiply 1st term by s Multiply 2nd term by c Multiply 3rd term by cs
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
@dido525 changing the RHS is perfectly OK, in most cases it is actually the only way you can solve the problem without spending 234098723094 hours trying to go through ridiculous transformations
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
@Dido525 yes, that's what my teacher want's us to try to do too, but im having alot of problems with this question, seems very complicated .
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Ohh!!! Hold on I am getting close!
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
And I only changed one side :) .
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Okay. The idea is we want to start with the complicated side. Lets choose the left side.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
should we start fresh, from the given problem ?
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
So we have: dw:1353386616775:dw
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
You know:dw:1353386673693:dw
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
I would change the sin^2(x) and cos^2(x) To match that formula :) .
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
dw:1353386849843:dw DO we change that into a one, or no ?
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
i think i'm wrong _
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
No you do not change that to a one.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
okay so first we change everything to sin & cos
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Well if sin^2(x) + cos^(x) =1 that what is Sin^2(x) equal to?
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
We want to keep tan and cot.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
why? that's how im taught to do it haha :$
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
it would be equal to 1/2
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
But since we have a tan and cot on the other side it's natural we want to keep it that way :P . I was taught that way too ^_^ . Sometiems we gotta break the rules.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
ohhh alright, i see what you're saying
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
So what do you get? Feel free to do it on paper and take pics.
 one year ago

SkaematikBest ResponseYou've already chosen the best response.0
burhan, don't listen to him. You CAN change the right hand side (cot and tan). And sometimes you must. It makes no sense not to change them
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
@Skaematik : But his teacher wants him to only change one side.
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
It only took 4 steps lol @Skaematik .
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
@Skaematik i know i can but the thing is i have to do it my teacher's method or she takes off marks :(
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
sorry, im SO confused tho
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
I am SURE you can do the rest :) .
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Expand it out and change the Tan(x) and Cot(x) into Sin's and cos's .
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
dw:1353387756754:dw
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
multiply those like that ?
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Good but leave sin(x)/cos(x) as Tan(x) and the cos(x)/sin(x) as Cot(x) .
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
i can't i get marks taken off if i do, my teacher has a checklist that we MUST follow or she takes off marks :P
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
okay, i don't know what to do from here on
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
I would riot at the teacher TBH.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
haha trust me me too :P
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
We can cancel out a cos(x) from the first fraction and a sin(x) from the other fraction. You notice that?
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
You have very neat handwriting Btw.
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
dw:1353388449271:dw No!!!
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
then what do i cancel out . :S
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
You can only cancel out terms if they have the same common denominator. You do not have the same common denominator in this case :) .
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
I KNOW you can solve the rest!
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
does it look like this,
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
DO YOU NOTICE SOMETHING YOU CAN CANCEL?!?!!?!
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
So rry... I am a bit of a math freak lol.
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
Look harder!!! We have a 2Sin(x)scos(x) . We can eliminate that!!! We
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
sinxcosx+2sinxcosx= sinxcosx
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
VERY CLOSE!!!! We can get rid of that too!!!
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
ohh i see it again haha dw:1353389264088:dw
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
So now we have: dw:1353389317704:dw
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
dw:1353389480538:dw
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
You know sin(x)/cos(x) is tan (x) :P .
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
yuppp & cosx/sinx = cot
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
dw:1353389561044:dw
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
THANKYOU ! i swear only you had the patience to help me for so long ^.^ :)
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
I remember I helped someone for 2 hour slol.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
thanksss again :D i would give you a cookie if i could haha
 one year ago

Dido525Best ResponseYou've already chosen the best response.1
I swear if the teacher takes marks off you need to protest. All of this is valid.
 one year ago

burhan101Best ResponseYou've already chosen the best response.0
I don't think she will because i changed the format to accommodate how she likes to mark !
 one year ago
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