Answer:
see the explanation
Step-by-step explanation:
we have
Prove
Remember that
![cos(2\alpha)=cos^2(\alpha)-sin^2(\alpha)](https://tex.z-dn.net/?f=cos%282%5Calpha%29%3Dcos%5E2%28%5Calpha%29-sin%5E2%28%5Calpha%29)
![tan(\alpha)=\frac{sin(\alpha)}{cos(\alpha)}](https://tex.z-dn.net/?f=tan%28%5Calpha%29%3D%5Cfrac%7Bsin%28%5Calpha%29%7D%7Bcos%28%5Calpha%29%7D)
substitute in the expression above
Remember that
![cos^2(\alpha)+sin^2(\alpha)=1](https://tex.z-dn.net/?f=cos%5E2%28%5Calpha%29%2Bsin%5E2%28%5Calpha%29%3D1)
Simplify
---> is proved
Answer:
896+32=928in
Step-by-step explanation:
Answer:
5 containers
Step-by-step explanation:
Alica has 20 cups of soup. She wants to put the soup into 1 quart containers. How many containers does she need?
It is important to note that:
4 cups = 1 quart
Hence, the number of containers she needs is calculated as:
4 cups = 1 quart
20 cups = x
Cross Multiply
4x = 20
x = 20/4
x = 5 quarts containers
Therefore, she needs 5 containers
Answer:
C. Why bullying makes a person feel bad.
My brain is kinda slow today, but I'm pretty sure the best answer is C. Otherwise, it would be D.