Answer:
![x=0,\pi,2\pi](https://tex.z-dn.net/?f=x%3D0%2C%5Cpi%2C2%5Cpi)
Explanation:
![cos^{2}(x)-cos(2x)=0](https://tex.z-dn.net/?f=cos%5E%7B2%7D%28x%29-cos%282x%29%3D0)
Firstly, we will simplify the double angle formulae
![cos(2x)=cos(x+x)\\cos(x+x)=cos(x)cos(x)-sin(x)sin(x)\\cos(x+x)=cos^{2}(x)-sin^{2}(x)](https://tex.z-dn.net/?f=cos%282x%29%3Dcos%28x%2Bx%29%5C%5Ccos%28x%2Bx%29%3Dcos%28x%29cos%28x%29-sin%28x%29sin%28x%29%5C%5Ccos%28x%2Bx%29%3Dcos%5E%7B2%7D%28x%29-sin%5E%7B2%7D%28x%29)
Now, we can substitute our value for cos(2x) into our original equation.
![cos^{2}(x)-(cos^{2}(x)-sin^{2}(x))=0\\cos^2(x)-cos^2(x)+sin^2(x)=0\\sin^2(x)=0\\sin(x)=0\\x=arcsin(0)\\x=0,\pi,2\pi](https://tex.z-dn.net/?f=cos%5E%7B2%7D%28x%29-%28cos%5E%7B2%7D%28x%29-sin%5E%7B2%7D%28x%29%29%3D0%5C%5Ccos%5E2%28x%29-cos%5E2%28x%29%2Bsin%5E2%28x%29%3D0%5C%5Csin%5E2%28x%29%3D0%5C%5Csin%28x%29%3D0%5C%5Cx%3Darcsin%280%29%5C%5Cx%3D0%2C%5Cpi%2C2%5Cpi)
(Solutions in the range
)
Large companies have the ability to take advantage from the economies of scale through offering goods which are more affordable than other smaller retailers. This is because as the company grows, their unit cost decreases due to some factors caused by the economies of scale.
This process is called chunking. Chunking is the process that happens when you break up words and letters into smaller words for memorization purposes. Since Will is wanting to learn how to spell longer words, it's easier on his memory to break the word up into chunks and sound it out so that he can spell it easier.
Answer:
False
Explanation:
This would actually decrease Larry's revenue per engine sold, but the quantity supplied should increase. The change in Larry's total revenue will depend on the price elasticity of demand. Total revenue could either decrease or increase depending on its PED:
These firms do not have perfect market information to know all the price charges by different sellers,the quality the market demand and supply is etc.