Find, Correct to the Nearest Degree, the Angle Between the Planes

question 106

Short Answer

Find, correct to the nearest degree, the angle between the planes.
$$x + y - z = 1,8 x - 11 y + 16 z = 5$$

---

Definitions:

Trade

The exchange of goods, services, or both between two or more parties.

Producer Surplus

The difference between what producers are willing to sell a good for and the market price they actually receive, representing their net benefit.

Free Trade

International trade left to operate without tariffs, quotas, or other restrictions, allowing for the unrestricted exchange of goods and services between countries.

Autarky

A condition in which an economy is self-sufficient and does not engage in international trade.