Set up a proportion
3/7/12 = 1/x
3/7x = 12
x = 28
28 - 12 = 16
16 are left
Answer:
![x=\frac{2\pi }{3},\:x=\frac{4\pi }{3}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B2%5Cpi%20%7D%7B3%7D%2C%5C%3Ax%3D%5Cfrac%7B4%5Cpi%20%7D%7B3%7D)
Step-by-step explanation:
Alright so being presented with this equation the first thing we want to do is subtract 1 from both sides of
.
.
Now we want to simplify it to
.
Now go ahead and divide both sides by 2. ![\frac{2\cos \left(x\right)}{2}=\frac{-1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Ccos%20%5Cleft%28x%5Cright%29%7D%7B2%7D%3D%5Cfrac%7B-1%7D%7B2%7D)
Make sure you simplify again to get
.
Now you need your sin/cos periodicity table. When you look at the charts. Look for the general solutions of
. After looking at the chart you will find
.
Which we can then finalize at
.
Hope this helps!
Answer:
you can eat this then you will got answer
Answer:
Hm I dont know if im right but im thinking it's a scalene, because the sides are not equal, or a obtuse triangle, because one side is more than 90 degrees. Hope this helps!