Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

Skaematik Group TitleBest ResponseYou've already chosen the best response.0
3rd to 4th line  the numerator shows s^3 but a c appeared
 2 years ago

Dido525 Group TitleBest 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.
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Instead there is a trig identity there.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
how do i fix this ? :S
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
There is a trig identity on the RHS.
 2 years ago

Skaematik Group TitleBest ResponseYou've already chosen the best response.0
At the 4th line, try combining the denominator
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
dw:1353385333795:dw
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
Doesnt the denominator get cancelled out already ?
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
@Dido525 like this dw:1353385466311:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
dw:1353385495522:dw
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
dw:1353385573816:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Yeah that's right.
 2 years ago

Skaematik Group TitleBest 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
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
I misread sorry.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
it's okay, but is that way correct now ?
 2 years ago

Skaematik Group TitleBest ResponseYou've already chosen the best response.0
yes its right
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Yes that is correct.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
@Skaematik like this dw:1353385871631:dw
 2 years ago

Skaematik Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ s ^{4}+c ^{4}+2s ^{2}c ^{2} }{ cs }\]
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
i'm having difficulties seeing how it get's the fourth power, can you please explain
 2 years ago

Dido525 Group TitleBest 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.
 2 years ago

Skaematik Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ s ^{2}s }{ c } + \frac{ c ^{2}c }{ s } + 2s\]
 2 years ago

Skaematik Group TitleBest 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
 2 years ago

Skaematik Group TitleBest 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
 2 years ago

burhan101 Group TitleBest 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 .
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Ohh!!! Hold on I am getting close!
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Got it!!!!!
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
And I only changed one side :) .
 2 years ago

Dido525 Group TitleBest 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.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
should we start fresh, from the given problem ?
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
Alrightt !
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
So we have: dw:1353386616775:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
You know:dw:1353386673693:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
I would change the sin^2(x) and cos^2(x) To match that formula :) .
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
Ohhh okay !
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Tell me what you get.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
dw:1353386849843:dw DO we change that into a one, or no ?
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
i think i'm wrong _
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
No you do not change that to a one.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
okay so first we change everything to sin & cos
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Well if sin^2(x) + cos^(x) =1 that what is Sin^2(x) equal to?
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
We want to keep tan and cot.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
why? that's how im taught to do it haha :$
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
it would be equal to 1/2
 2 years ago

Dido525 Group TitleBest 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.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
ohhh alright, i see what you're saying
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
So what do you get? Feel free to do it on paper and take pics.
 2 years ago

Skaematik Group TitleBest 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
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
@Skaematik : But his teacher wants him to only change one side.
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
It only took 4 steps lol @Skaematik .
 2 years ago

burhan101 Group TitleBest 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 :(
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
@Dido525 oh no :(
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
sorry, im SO confused tho
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
dw:1353387439718:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
I am SURE you can do the rest :) .
 2 years ago

Dido525 Group TitleBest 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 .
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
okay, i will try
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
dw:1353387756754:dw
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
multiply those like that ?
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
like that :S
 2 years ago

Dido525 Group TitleBest 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) .
 2 years ago

burhan101 Group TitleBest 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
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
okay, i don't know what to do from here on
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
I would riot at the teacher TBH.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
haha trust me me too :P
 2 years ago

Dido525 Group TitleBest 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?
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
You have very neat handwriting Btw.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
Thankyou :)
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
Like so :
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
You Cannot do this!!!
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
dw:1353388449271:dw No!!!
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
then what do i cancel out . :S
 2 years ago

Dido525 Group TitleBest 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 :) .
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
oh yeah, wooops
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
dw:1353388530585:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
I KNOW you can solve the rest!
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
does it look like this,
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
DO YOU NOTICE SOMETHING YOU CAN CANCEL?!?!!?!
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
So rry... I am a bit of a math freak lol.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
i'm afraid not :(
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Look harder!!! We have a 2Sin(x)scos(x) . We can eliminate that!!! We
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Do you see how?!?!?!
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
OH i think i see it
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
sinxcosx+2sinxcosx= sinxcosx
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
VERY CLOSE!!!! We can get rid of that too!!!
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
ohh i see it again haha dw:1353389264088:dw
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
Yaaay ! :D
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
So now we have: dw:1353389317704:dw
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
dw:1353389480538:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
You know sin(x)/cos(x) is tan (x) :P .
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
yuppp & cosx/sinx = cot
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
dw:1353389561044:dw
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
Hence proved :) .
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
THANKYOU ! i swear only you had the patience to help me for so long ^.^ :)
 2 years ago

Dido525 Group TitleBest ResponseYou've already chosen the best response.1
I remember I helped someone for 2 hour slol.
 2 years ago

burhan101 Group TitleBest ResponseYou've already chosen the best response.0
thanksss again :D i would give you a cookie if i could haha
 2 years ago

Dido525 Group TitleBest 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.
 2 years ago

burhan101 Group TitleBest 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 !
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.