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BeccaB003
 one year ago
Help with lengths. Thanks!
BeccaB003
 one year ago
Help with lengths. Thanks!

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Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\[\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }\]

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0I need to calculate the length of NO. I know how to work these problems EXCEPT I don't know whether to use sin cos or tan.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1alright as you can the functions i posted hve 3 variables so to find NO you should know one angel and one side so we have to use sin \[\huge\rm sin(60)= \frac{ opposite }{hyp }\]

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1let NO=x so x is the opposite side of angle 60 and hyp is 24 so substitute \[\huge\rm sin(60)= \frac{ x}{24}\] solve for x :=)

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0So, in a problem like this, whenever you have the information of one angle and one side you always use sin?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1nope it depends on sides and angles like which angle and side they gave you

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1for this problem we have to apply sin bec like i said earlier we need one angle and one side so given is hyp and angle and we need to find NO which is opposite side of angle that's why sin

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0So, sin 60 = .866 * 24 = 20.785

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1mod should be on degree!!

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1sin60=root3/2 no need to write before simplifying

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1i meant no decimal before simplifying :)

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0My calculator is on degree. I checked. Also, I need to know How to know whether a problem is sin cos or tan?? I want to be able to know right off from looking at the problem which one I need to use.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1well if you have 3 variables formula you should know values of 2 variables to find 3rd one dw:1434509817378:dw i need opposite side and given is hyp so i should apply sin which is equal to opposite over hyp

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0Also, my answer option isn't 20.785 These are the only options I have and they don't make sense when I do the problem: \[12\sqrt{2}\] 12 \[12\sqrt{3}\] \[24\sqrt{3}\]

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1it is just convenient that you write roots as they are

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1you see if the answer were written in that form, no decimal no calculator is needed!

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1it depends on answer choices :=)

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1not really most often radical need to be written as they if we cannot simplify them

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1as they are*

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0I'm confused. I did the problem but it isn't one of the options.... can you convert it??

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1that is why i'm saying that lol you see sin60=x/24 ===> x=24sin60=24 root(3)/2=12root(3)

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1yes otherwise they should know the unit circle pattrn or at least memorize it

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.112 root(3) is your answer dear :)

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1yeah must have the unit circle :)

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0Also, @Nnesha thank you for your example about recognizing sin, cos, and tan. After I've completed the current problem, can you draw another example like you did and see if I can recognize the correct one; sin, cos, or tan?

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0Thank you! @xapproachesinfinity

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1no problem

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1they are not allowed to have unit circle 'n the final exam :=)

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1i meant they need to know some way or the other not taking it in the exams hahaha

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1i actually memorized them from table lol but if i forgot any one of them i use special triangles

BeccaB003
 one year ago
Best ResponseYou've already chosen the best response.0haha! oh bother..... my exam is gonna be fun. I never learned about a 'unit circle' in my class.....

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\(\color{blue}{\text{Originally Posted by}}\) @xapproachesinfinity i actually memorized them from table lol but if i forgot any one of them i use special triangles \(\color{blue}{\text{End of Quote}}\) same i memorized it 2 no time for 45459 and 306090 theorem :D

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1oh forgot about that okay give me a sec

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434511171692:dw find angle B :=_

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434511566103:dw or this one :=)
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