Answer:
Step-by-step explanation:
![\sf Formula: \\\\\sin 2 \theta = 2 \sin \theta \cos \theta](https://tex.z-dn.net/?f=%5Csf%20Formula%3A%20%5C%5C%5C%5C%5Csin%202%20%5Ctheta%20%20%20%20%3D%20%202%20%5Csin%20%5Ctheta%20%20%5Ccos%20%5Ctheta)
![\text {\sf \Large Solution :}](https://tex.z-dn.net/?f=%5Ctext%20%7B%5Csf%20%5CLarge%20Solution%20%3A%7D)
![\cos 2 \theta +\dfrac{\sin \theta\cdot \cos \theta }{\sin 2 \theta } = \\\\\ \cos 2 \theta +\dfrac{\sin \theta\cdot \cos \theta}{2\sin \theta\cdot \cos \theta} =\boxed{\cos 2 \theta +\dfrac{1}{2} }](https://tex.z-dn.net/?f=%5Ccos%202%20%5Ctheta%20%2B%5Cdfrac%7B%5Csin%20%5Ctheta%5Ccdot%20%5Ccos%20%5Ctheta%20%20%7D%7B%5Csin%202%20%5Ctheta%20%7D%20%20%3D%20%5C%5C%5C%5C%5C%20%5Ccos%202%20%5Ctheta%20%2B%5Cdfrac%7B%5Csin%20%5Ctheta%5Ccdot%20%5Ccos%20%5Ctheta%7D%7B2%5Csin%20%5Ctheta%5Ccdot%20%5Ccos%20%5Ctheta%7D%20%20%3D%5Cboxed%7B%5Ccos%202%20%5Ctheta%20%2B%5Cdfrac%7B1%7D%7B2%7D%20%7D)
Answer:
½*b*h
Step-by-step explanation:
½*base*height
<h2>you can use the above formula to answer the following questions.</h2>
Answer:
a=7
Step-by-step explanation:
3:5 =3/5
3/5=4.16/x
using cross multiplication,
5(4.15)=3(x)
20.8=3x
x=108/15
thus, 4.16÷104/15 =3/5
Answer: See figure 2 in the diagram below for the table.
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Explanation:
The steps are fairly lengthy to explain in words, but the process is fairly straightforward. Start with figure 1 in the diagram below. The letters A through O represent the steps you'll take to replace them. For instance, you'll replace A with 219 since that's the grand total. Then B is replaced with 137 since we're told that 137 girls were surveyed. Then C gets replaced with 219-137 = 82, and so on. Use arithmetic (adding and subtracting) to gradually replace each letter with the proper number as figure 2 shows. The alphabetical order directly corresponds to the order in which the values are given by your teacher (eg: 219 is first, then 137 next, and so on).
Let me know if you get stuck on any one step, or need me to go into more detail.