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kittiwitti1
 one year ago
I DON'T GET IT
How is either method wrong?  (the plus minus sign wasn't an option in their symbols bank?)
http://prntscr.com/8ft0nc
http://prntscr.com/8ft0se
kittiwitti1
 one year ago
I DON'T GET IT How is either method wrong?  (the plus minus sign wasn't an option in their symbols bank?) http://prntscr.com/8ft0nc http://prntscr.com/8ft0se

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imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1\[\sqrt{4(2\sin \theta)^2}\]\[\sqrt{44\sin^2\theta} \]\[\sqrt{4(1\sin^2\theta)}\]and 1sin^2(theta)=cos^2theta so we get \[\sqrt{4\cos^2\theta}\]=\[\pm2\cos \theta\]

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I got that. The system isn't taking the answer in any form...

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1wait :D i didn see this  \[0<\theta <90\]

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I tried these combinations\[\pm\sqrt{4\cos^{2}\theta}\]\[\sqrt{4\cos^{2}\theta},\sqrt{4\cos^{2}\theta}\]yes? what does this mean?\[0\lt\theta\lt90?\]

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1that means that the angle theta lies between 0degrees and 90 deegrees

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Yes ? I don't know what that applies to my answer lol, don't know how to

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1hav u tried this \[2\cos \theta\]

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1tried that as the answer?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I have tried the positive version already. I have only one attempt left. However, I solved by hand and the answer I got was\[\pm2\cos\theta\]

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I mean\[\pm2\left\cos\theta\right\]

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I don't get it. See, I got this one right without issues. http://prntscr.com/8ft75p

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Maybe they are negative?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I can't risk the attempt though, got to make sure. :S

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1:) if they r not accepting positive then no scope for negative

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1maybe theres some error in their server

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1"No scope"?? Confused Yes maybe. One time I put space after a comma and they told me it was wrong. Someone on here said "take the space out" and I got it right after that... =_=

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1hahaha :D these things r annoying have u tried it like this http://prntscr.com/8ft8mg i mean that space between theta nd that sec or tan or whateva

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Sadly I tried it before, doesn't register as a trig function if I do that

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1have tried any such question before ...a question in which the answer was in the form of a trigo expression?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1i would try \( 2 \cos \theta \) for 1st and \(3\tan \theta \) for 2nd

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1i mean \(3 \tan \theta \)

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn first one does not accept second one I cannot try, I must be sure  only one submit attempt left ^^; sorry!

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1its definitely not \(\pm\) the answer to a \(\sqrt{...}\) is always a positive

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1yes maybe it doesn't accept because of that bracket u put :P http://prntscr.com/8ftchw

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1The coding comes with the bracket. @imqwerty I cannot remove that. I have tried that.

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn I was taught that there are two types of signs to a square root? I mean ()()=+ right?

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1u must consult ur teacher

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1HAHAHAHHA my teacher is dumb she won't help me, I've tried. She sucks at technology and give us online homework LOL

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1if already not tried, \(3 \tan(\theta)\) is worth trying for 2nd. don't forget to keep the fingers crossed :P

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1ehhh. I have done that?

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1is this flvs? maybe u get the solution to this issue on google :)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1if x^2 = a then x = \(\pm \sqrt a\) thats because \((\sqrt a)^2 \\ and \\ (\sqrt a)^2 \\ \text{both equal a}\)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1and \(\sqrt a\) is just one of them, and it can never be negative

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Ah my question key die from pressing too much LOL x_x!

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1was just trying to explain why sqrt a can never be negative

imqwerty
 one year ago
Best ResponseYou've already chosen the best response.1so u got the 1st one wrong ....did it tell u the correct answer afterwards?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1@imqwerty No, it does not tell me the answer. :[ @hartnn I am still lost, what oo

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1...My computer is very laggy right now

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1go for \(3\tan \theta \) !

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1...Fine, I blame you guys if I fail the question lol

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1http://prntscr.com/8ftleb ... @hartnn it's wrong.

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I don't get iiiit! D:

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1the system should atleast take equivalent answers.. seems to be a faulty system, and an incorrect way to test students! maybe it would have accepted \(3 \tan \theta \)

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1The teacher said the answer must be acos theta format

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1it needs to have cos in ti ??

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1no that is an example trig function

hartnn
 one year ago
Best ResponseYou've already chosen the best response.13  tan \(\theta \) is indeed in that format

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Yeah idk why they say it's wrong. This question have the right format http://prntscr.com/8ftnwx

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn \[\sin10=\cos{?}\]

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1sin x = cos(90x) here x = 10 whats 90 10 ?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1But I don't get the formatting of those problem, confusing D:

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Also: "Use Definition II to explain why it is possible to find an angle θ that will make tan θ as large as we wish" (what?!)

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1whats the Def II? they are asking why tan 90n goes to infinity or infinity

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Yes. And I got wrong answer here too LOL very sorry (8 cos 30°)2 I put 96 is wrong

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1cos 30 = sqrt 3/2 8 cos 30 = 4 sqrt 3 its square 16*3 = ...

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1But... what about the weird question? Do I just skip it for now? oo

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1take 2nd opinion... maybe ask some other expert or you can skip it, if you're not in any hury

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn Sorry question: http://prntscr.com/8ftxg2 ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1cos 30 = sqrt 3/2 cos^2 30 = 3/4 4cos^2 30 = 3

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1So I should not do it the quadratic formula way yes?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1you can, but that not required, because we know the values already

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1−5 sin 2x if x = 30, how much? I don't know how to do a sin b x

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1x = 30, so 2x = 60 sin 60 = sqrt 3/2 so 5 sqrt 3/2

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1OOOOOOH okay! Thank you :)

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Umm last one, this really confusing me http://prntscr.com/8fu4ew?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1tan is opposite/adjacent so it has to be the 1st one only

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1Ohhh okay my brain is too tired to process right, thank you so much lol

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1I gonna close this now

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn @imqwerty the answer was right EXCEPT for the absolute value... WHAT THE HECK Thanks hartnn I should have listened to you lol
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