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burhan101
 2 years ago
Tell me what i'm doing wrong, picture is attached.
burhan101
 2 years ago
Tell me what i'm doing wrong, picture is attached.

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Skaematik
 2 years ago
Best ResponseYou've already chosen the best response.03rd to 4th line  the numerator shows s^3 but a c appeared

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1You also made a mistake on the RHS. You can't cross out the sin's and cos's like that.

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

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

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

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

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

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

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

Skaematik
 2 years ago
Best ResponseYou've already chosen the best response.0For 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

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

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

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

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

Dido525
 2 years ago
Best 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.

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

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

Skaematik
 2 years ago
Best 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

burhan101
 2 years ago
Best 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 .

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Okay. The idea is we want to start with the complicated side. Lets choose the left side.

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

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

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

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

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

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

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

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

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

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

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1But 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.

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

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

Skaematik
 2 years ago
Best ResponseYou've already chosen the best response.0burhan, 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

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

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

burhan101
 2 years ago
Best 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 :(

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Expand it out and change the Tan(x) and Cot(x) into Sin's and cos's .

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1Good but leave sin(x)/cos(x) as Tan(x) and the cos(x)/sin(x) as Cot(x) .

burhan101
 2 years ago
Best ResponseYou've already chosen the best response.0i 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

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

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1We can cancel out a cos(x) from the first fraction and a sin(x) from the other fraction. You notice that?

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

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1You can only cancel out terms if they have the same common denominator. You do not have the same common denominator in this case :) .

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.1I swear if the teacher takes marks off you need to protest. All of this is valid.

burhan101
 2 years ago
Best ResponseYou've already chosen the best response.0I don't think she will because i changed the format to accommodate how she likes to mark !
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