Given:
The figure of a trapezium.
To find:
The measures of missing angle
.
Solution:
In the given figure
.
If a transversal line intersect the two parallel lines, then the same sides interior angles are supplementary angles.
(Supplementary angles)
![87^\circ+m\angle M=180^\circ](https://tex.z-dn.net/?f=87%5E%5Ccirc%2Bm%5Cangle%20M%3D180%5E%5Ccirc)
![m\angle M=180^\circ-87^\circ](https://tex.z-dn.net/?f=m%5Cangle%20M%3D180%5E%5Ccirc-87%5E%5Ccirc)
![m\angle M=93^\circ](https://tex.z-dn.net/?f=m%5Cangle%20M%3D93%5E%5Ccirc)
Similarly,
(Supplementary angles)
![51^\circ+m\angle K=180^\circ](https://tex.z-dn.net/?f=51%5E%5Ccirc%2Bm%5Cangle%20K%3D180%5E%5Ccirc)
![m\angle K=180^\circ-51^\circ](https://tex.z-dn.net/?f=m%5Cangle%20K%3D180%5E%5Ccirc-51%5E%5Ccirc)
![m\angle K=129^\circ](https://tex.z-dn.net/?f=m%5Cangle%20K%3D129%5E%5Ccirc)
Therefore,
and
.
Answer:
![(\, \cos(\frac{\pi}{16}) + i\sin(\frac{\pi}{16}) \,)^{1/2} = \cos(\frac{\pi}{32}) + i\sin(\frac{\pi}{32}) = 0.99 + i0.09](https://tex.z-dn.net/?f=%28%5C%2C%20%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B16%7D%29%20%2B%20i%5Csin%28%5Cfrac%7B%5Cpi%7D%7B16%7D%29%20%5C%2C%29%5E%7B1%2F2%7D%20%20%3D%20%20%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B32%7D%29%20%2B%20i%5Csin%28%5Cfrac%7B%5Cpi%7D%7B32%7D%29%20%20%3D%200.99%20%2B%20i0.09)
Step-by-step explanation:
The complex number given is
![z = (\, \cos(\frac{\pi}{16}) + i\sin(\frac{\pi}{16}) \,)^{1/2}](https://tex.z-dn.net/?f=z%20%3D%20%28%5C%2C%20%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B16%7D%29%20%2B%20i%5Csin%28%5Cfrac%7B%5Cpi%7D%7B16%7D%29%20%5C%2C%29%5E%7B1%2F2%7D)
Now, remember that the DeMoivre's theorem states that
![( \cos(x) + i\sin(x) )^n = \cos(nx) + i\sin(nx)](https://tex.z-dn.net/?f=%28%20%5Ccos%28x%29%20%2B%20i%5Csin%28x%29%20%29%5En%20%20%3D%20%5Ccos%28nx%29%20%2B%20i%5Csin%28nx%29)
Then for this case we have that
![(\, \cos(\frac{\pi}{16}) + i\sin(\frac{\pi}{16}) \,)^{1/2} = \cos(\frac{\pi}{32}) + i\sin(\frac{\pi}{32}) = 0.99 + i0.09](https://tex.z-dn.net/?f=%28%5C%2C%20%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B16%7D%29%20%2B%20i%5Csin%28%5Cfrac%7B%5Cpi%7D%7B16%7D%29%20%5C%2C%29%5E%7B1%2F2%7D%20%20%3D%20%20%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B32%7D%29%20%2B%20i%5Csin%28%5Cfrac%7B%5Cpi%7D%7B32%7D%29%20%20%3D%200.99%20%2B%20i0.09)
Step-by-step explanation:
Hope this helps
Hope this is correct
Find a common denominator between the two (this case it would be 18) and bring the fractions up, so 10/9 would be 20/18, and 3/2 would be 27/18. Then, multiply across, and simplify to lowest terms.