anonymous one year ago medal If sine of x equals 1 over 2, what is cos(x) and tan(x)? Explain your steps in complete sentences.

1. anonymous

For what angle x does sin(x) = 1/2 ?

2. anonymous

It's a very commonly known value. Once you have the angle you will have all your answers.

3. anonymous

Hint: I would suggest you memorize what the sine and cosine of 30,45 and 60 degrees is because you'll see them a lot in exercises and tests.

4. anonymous

i think -30

5. anonymous

cos(x) = sqrt 3/2

6. anonymous

$\sin x=\frac{ 1 }{ 2 }$ $\sin ^2x+\cos ^2x=1,\cos ^2x=\frac{ 3 }{ 4 }$ $\cos x=\pm \frac{ \sqrt{3} }{ 2 }$ $\tan x=\pm ?$

7. anonymous

is there a formula for tan

8. anonymous

$tanx=\frac{ \sin x }{ \cos x }$

9. anonymous

so 3/4/sqrt 3/2

10. anonymous

.61

11. anonymous

no $\pm \frac{ \frac{ 1 }{ 2 } }{ \frac{ \sqrt{3} }{ 2 } }=\pm \frac{ 1 }{ \sqrt{3} }=\pm \frac{ \sqrt{3} }{ 3 } = \pm \frac{ 1.732 }{ 3 }=?$

12. anonymous

thank

13. anonymous

Functions f(x) and g(x) are shown below: