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## kittiwitti1 one year ago REPOST (because the other one got too cluttered) Find y if the point (15, y) is on the terminal side of θ and$\cos\theta=\frac{15}{17}$(Enter your answers as a comma-separated list.) My result was $\pm8$but I'm told that it's the wrong answer. ッ what I did: $y=\sqrt{17^{2}-15^{2}}=\sqrt{289-225}=\sqrt{64}=\pm8$$x=15,y=8,r=17$$\sin\theta=\frac{8}{17},\cos\theta=\frac{15}{17},\csc\theta=\frac{17}{8},\sec\theta=\frac{17}{15}$I would have kept going but I'm not sure if I'm going in the right direction.

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1. kittiwitti1

Please help, anyone? @DanJS @dan815 @ganeshie8 @Luigi0210

2. kittiwitti1

@undeadknight26 @radar @freckles @Zale101 I don't want to mass-tag but I really need help on this. e_e

3. kittiwitti1

Did I mess up anywhere?

4. ganeshie8

$$\pm 8$$ looks good to me

5. kittiwitti1

Indeed but I got the "wrong answer" according to the website. I am confused. http://prntscr.com/8di5he @ganeshie8 ?

6. ganeshie8

try entering -8,8 without spaces between them

7. kittiwitti1

I've done that on other problems with the same result as the original attempt... I honestly don't think it's a typo issue.

8. kittiwitti1

But if you think there is no other way that it is wrong I will try it. ^^; I wanted to try this but I wasn't sure if I'd done anything wrong; hence wasting an answer submission would not be ideal.

9. ganeshie8

please take other opinions too

10. kittiwitti1

I trust your opinion though >_> yours and batman's. but he's offline

11. ganeshie8

to me -8,8 looks is the correct answer i don't see how it can possibly go wrong..

12. kittiwitti1

Okay I'll submit it then :]

13. jchick

Yes I got the same thing

14. kittiwitti1

-stares blankly- OMFG. IT WAS THE REASON ALL ALONG

15. kittiwitti1

-slams face into desk- WHY IS THIS WEBSITE SO FREAKING STUPID.

16. kittiwitti1

But thanks for your time and help @ganeshie8 :)

17. ganeshie8

dumb graders, congrats! :)

18. kittiwitti1

lol yes. thank you very much > _ <;;

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