## anonymous one year ago If sin(x)=1/2 what is cos(x) and tan(x)?

1. anonymous

@vera_ewing

2. anonymous

@carolinar7

3. carolinar7

WHt?

4. misty1212

HI!!

5. misty1212

i guess you are supposed to figure you are in quadrant 1, otherwise you cannot know for certain what cosine or tangent is

6. anonymous

yes, that's all i have learned lol

7. misty1212

what you need is a good trig cheat sheet look below

8. misty1212

sine is the second coordinate look at the unit circle on the last page of the cheat sheet find the point where the second coordinate is $$\frac{1}{2}$$ the cosine is the first coordinate of that point

9. misty1212

let me know when you see it

10. anonymous

ok I found it so its, √3/2? which must mean that tan is 1/√3?

11. misty1212

yes and yes

12. anonymous

THANK YOU SO MUCH!!!!!

13. misty1212

although if you have answer choices, the tangent might be called $$\frac{\sqrt3}{3}$$

14. misty1212

same thing, just with the denominator rationalized

15. anonymous

no there aren't any

16. misty1212

$\color\magenta\heartsuit$

17. misty1212

btw hold on to that cheat sheet, it may come in handy

18. anonymous

TY!!!

19. misty1212

yw